diff --git a/src/App.php b/src/App.php
index 400ea15b1..f59b15d1d 100644
--- a/src/App.php
+++ b/src/App.php
@@ -705,7 +705,8 @@ class App
 			// Initialize module that can set the current theme in the init() method, either directly or via App->setProfileOwner
 			$page['page_title'] = $moduleName;
 
-			if (!$this->mode->isInstall() && !$this->mode->has(App\Mode::MAINTENANCEDISABLED)) {
+			// The "view" module is required to show the theme CSS
+			if (!$this->mode->isInstall() && !$this->mode->has(App\Mode::MAINTENANCEDISABLED) && $moduleName !== 'view') {
 				$module = $router->getModule(Maintenance::class);
 			} else {
 				// determine the module class and save it to the module instance
diff --git a/view/theme/duepuntozero/style.php b/view/theme/duepuntozero/style.php
index a56a01282..575f0dff5 100644
--- a/view/theme/duepuntozero/style.php
+++ b/view/theme/duepuntozero/style.php
@@ -25,13 +25,12 @@ if (file_exists("$THEMEPATH/style.css")) {
 	echo file_get_contents("$THEMEPATH/style.css");
 }
 
-$uid = $_REQUEST['puid'] ?? 0;
-
-$s_colorset = DI::config()->get('duepuntozero', 'colorset');
-$colorset = DI::pConfig()->get($uid, 'duepuntozero', 'colorset');
-
-if (empty($colorset)) {
-	$colorset = $s_colorset;
+/*
+ * This script can be included when the maintenance mode is on, which requires us to avoid any config call
+ */
+if (DI::mode()->has(\Friendica\App\Mode::MAINTENANCEDISABLED)) {
+	$s_colorset = DI::config()->get('duepuntozero', 'colorset');
+	$colorset = DI::pConfig()->get($_REQUEST['puid'] ?? 0, 'duepuntozero', 'colorset', $s_colorset);
 }
 
 $setcss = '';
diff --git a/view/theme/duepuntozero/theme.php b/view/theme/duepuntozero/theme.php
index cc77e781b..327a1e73b 100644
--- a/view/theme/duepuntozero/theme.php
+++ b/view/theme/duepuntozero/theme.php
@@ -23,27 +23,36 @@ use Friendica\App;
 use Friendica\Core\Renderer;
 use Friendica\DI;
 
+/*
+ * This script can be included even when the app is in maintenance mode which requires us to avoid any config call
+ */
+
 function duepuntozero_init(App $a) {
 
-Renderer::setActiveTemplateEngine('smarty3');
+	Renderer::setActiveTemplateEngine('smarty3');
 
-    $colorset = DI::pConfig()->get( local_user(), 'duepuntozero','colorset');
-    if (!$colorset)
-       $colorset = DI::config()->get('duepuntozero', 'colorset');          // user setting have priority, then node settings
-    if ($colorset) {
-        if ($colorset == 'greenzero')
-            DI::page()['htmlhead'] .= '<link rel="stylesheet" href="view/theme/duepuntozero/deriv/greenzero.css" type="text/css" media="screen" />'."\n";
-        if ($colorset == 'purplezero')
-	        DI::page()['htmlhead'] .= '<link rel="stylesheet" href="view/theme/duepuntozero/deriv/purplezero.css" type="text/css" media="screen" />'."\n";
-        if ($colorset == 'easterbunny')
-	        DI::page()['htmlhead'] .= '<link rel="stylesheet" href="view/theme/duepuntozero/deriv/easterbunny.css" type="text/css" media="screen" />'."\n";
-        if ($colorset == 'darkzero')
-	        DI::page()['htmlhead'] .= '<link rel="stylesheet" href="view/theme/duepuntozero/deriv/darkzero.css" type="text/css" media="screen" />'."\n";
-        if ($colorset == 'comix')
-	        DI::page()['htmlhead'] .= '<link rel="stylesheet" href="view/theme/duepuntozero/deriv/comix.css" type="text/css" media="screen" />'."\n";
-        if ($colorset == 'slackr')
-	        DI::page()['htmlhead'] .= '<link rel="stylesheet" href="view/theme/duepuntozero/deriv/slackr.css" type="text/css" media="screen" />'."\n";
-    }
+	$colorset = null;
+
+	if (DI::mode()->has(App\Mode::MAINTENANCEDISABLED)) {
+		$colorset = DI::pConfig()->get(local_user(), 'duepuntozero', 'colorset');
+		if (!$colorset)
+			$colorset = DI::config()->get('duepuntozero', 'colorset');          // user setting have priority, then node settings
+	}
+
+	if ($colorset) {
+		if ($colorset == 'greenzero')
+			DI::page()['htmlhead'] .= '<link rel="stylesheet" href="view/theme/duepuntozero/deriv/greenzero.css" type="text/css" media="screen" />' . "\n";
+		if ($colorset == 'purplezero')
+			DI::page()['htmlhead'] .= '<link rel="stylesheet" href="view/theme/duepuntozero/deriv/purplezero.css" type="text/css" media="screen" />' . "\n";
+		if ($colorset == 'easterbunny')
+			DI::page()['htmlhead'] .= '<link rel="stylesheet" href="view/theme/duepuntozero/deriv/easterbunny.css" type="text/css" media="screen" />' . "\n";
+		if ($colorset == 'darkzero')
+			DI::page()['htmlhead'] .= '<link rel="stylesheet" href="view/theme/duepuntozero/deriv/darkzero.css" type="text/css" media="screen" />' . "\n";
+		if ($colorset == 'comix')
+			DI::page()['htmlhead'] .= '<link rel="stylesheet" href="view/theme/duepuntozero/deriv/comix.css" type="text/css" media="screen" />' . "\n";
+		if ($colorset == 'slackr')
+			DI::page()['htmlhead'] .= '<link rel="stylesheet" href="view/theme/duepuntozero/deriv/slackr.css" type="text/css" media="screen" />' . "\n";
+	}
 DI::page()['htmlhead'] .= <<< EOT
 <script>
 function cmtBbOpen(comment, id) {
diff --git a/view/theme/frio/style.php b/view/theme/frio/style.php
index 6d7e7b73f..81d750d0a 100644
--- a/view/theme/frio/style.php
+++ b/view/theme/frio/style.php
@@ -31,45 +31,64 @@ $schemecss = '';
 $schemecssfile = false;
 $scheme_modified = 0;
 
-DI::config()->load('frio');
+/*
+ * This script can be included when the maintenance mode is on, which requires us to avoid any config call and
+ * use the following hardcoded defaults
+ */
+$scheme           = null;
+$scheme_accent    = FRIO_SCHEME_ACCENT_BLUE;
+$nav_bg           = '#708fa0';
+$nav_icon_color   = '#ffffff';
+$link_color       = '#6fdbe8';
+$background_color = '#ededed';
+$contentbg_transp = 100;
+$background_image = 'img/none.png';
+$bg_image_option  = '';
+$login_bg_image   = '';
+$login_bg_color   = '';
+$modified         = time();
 
-// Default to hard-coded values for empty settings
-$scheme           = DI::config()->get('frio', 'scheme', DI::config()->get('frio', 'schema'));
-$scheme_accent    = DI::config()->get('frio', 'scheme_accent')    ?: FRIO_SCHEME_ACCENT_BLUE;
-$nav_bg           = DI::config()->get('frio', 'nav_bg')           ?: '#708fa0';
-$nav_icon_color   = DI::config()->get('frio', 'nav_icon_color')   ?: '#ffffff';
-$link_color       = DI::config()->get('frio', 'link_color')       ?: '#6fdbe8';
-$background_color = DI::config()->get('frio', 'background_color') ?: '#ededed';
-$contentbg_transp = DI::config()->get('frio', 'contentbg_transp') ?? 100;
-$background_image = DI::config()->get('frio', 'background_image') ?: 'img/none.png';
-$bg_image_option  = DI::config()->get('frio', 'bg_image_option')  ?: '';
-$login_bg_image   = DI::config()->get('frio', 'login_bg_image')   ?: '';
-$login_bg_color   = DI::config()->get('frio', 'login_bg_color')   ?: '';
-$modified         = DI::config()->get('frio', 'css_modified')     ?: time();
+if (DI::mode()->has(\Friendica\App\Mode::MAINTENANCEDISABLED)) {
+	DI::config()->load('frio');
+
+	// Default to hard-coded values for empty settings
+	$scheme           = DI::config()->get('frio', 'scheme', DI::config()->get('frio', 'schema'));
+	$scheme_accent    = DI::config()->get('frio', 'scheme_accent')    ?: $scheme_accent;
+	$nav_bg           = DI::config()->get('frio', 'nav_bg')           ?: $nav_bg;
+	$nav_icon_color   = DI::config()->get('frio', 'nav_icon_color')   ?: $nav_icon_color;
+	$link_color       = DI::config()->get('frio', 'link_color')       ?: $link_color;
+	$background_color = DI::config()->get('frio', 'background_color') ?: $background_color;
+	$contentbg_transp = DI::config()->get('frio', 'contentbg_transp') ?? $contentbg_transp;
+	$background_image = DI::config()->get('frio', 'background_image') ?: $background_image;
+	$bg_image_option  = DI::config()->get('frio', 'bg_image_option')  ?: $bg_image_option;
+	$login_bg_image   = DI::config()->get('frio', 'login_bg_image')   ?: $login_bg_image;
+	$login_bg_color   = DI::config()->get('frio', 'login_bg_color')   ?: $login_bg_color;
+	$modified         = DI::config()->get('frio', 'css_modified')     ?: $modified;
+
+	// Get the UID of the profile owner.
+	$uid = $_REQUEST['puid'] ?? 0;
+	if ($uid) {
+		DI::pConfig()->load($uid, 'frio');
+
+		// Only override display settings that have actually been set
+		$scheme           = DI::pConfig()->get($uid, 'frio', 'scheme', DI::pConfig()->get($uid, 'frio', 'schema')) ?: $scheme;
+		$scheme_accent    = DI::pConfig()->get($uid, 'frio', 'scheme_accent')    ?: $scheme_accent;
+		$nav_bg           = DI::pConfig()->get($uid, 'frio', 'nav_bg')           ?: $nav_bg;
+		$nav_icon_color   = DI::pConfig()->get($uid, 'frio', 'nav_icon_color')   ?: $nav_icon_color;
+		$link_color       = DI::pConfig()->get($uid, 'frio', 'link_color')       ?: $link_color;
+		$background_color = DI::pConfig()->get($uid, 'frio', 'background_color') ?: $background_color;
+		$contentbg_transp = DI::pConfig()->get($uid, 'frio', 'contentbg_transp') ?? $contentbg_transp;
+		$background_image = DI::pConfig()->get($uid, 'frio', 'background_image') ?: $background_image;
+		$bg_image_option  = DI::pConfig()->get($uid, 'frio', 'bg_image_option')  ?: $bg_image_option;
+		$modified         = DI::pConfig()->get($uid, 'frio', 'css_modified')     ?: $modified;
+	}
+}
 
 if (!$login_bg_image && !$login_bg_color) {
 	$login_bg_image = 'img/login_bg.jpg';
 }
 $login_bg_color = $login_bg_color ?: '#ededed';
 
-// Get the UID of the profile owner.
-$uid = $_REQUEST['puid'] ?? 0;
-if ($uid) {
-	DI::pConfig()->load($uid, 'frio');
-
-	// Only override display settings that have actually been set
-	$scheme           = DI::pConfig()->get($uid, 'frio', 'scheme', DI::pConfig()->get($uid, 'frio', 'schema')) ?: $scheme;
-	$scheme_accent    = DI::pConfig()->get($uid, 'frio', 'scheme_accent')    ?: $scheme_accent;
-	$nav_bg           = DI::pConfig()->get($uid, 'frio', 'nav_bg')           ?: $nav_bg;
-	$nav_icon_color   = DI::pConfig()->get($uid, 'frio', 'nav_icon_color')   ?: $nav_icon_color;
-	$link_color       = DI::pConfig()->get($uid, 'frio', 'link_color')       ?: $link_color;
-	$background_color = DI::pConfig()->get($uid, 'frio', 'background_color') ?: $background_color;
-	$contentbg_transp = DI::pConfig()->get($uid, 'frio', 'contentbg_transp') ?? $contentbg_transp;
-	$background_image = DI::pConfig()->get($uid, 'frio', 'background_image') ?: $background_image;
-	$bg_image_option  = DI::pConfig()->get($uid, 'frio', 'bg_image_option')  ?: $bg_image_option;
-	$modified         = DI::pConfig()->get($uid, 'frio', 'css_modified')     ?: $modified;
-}
-
 // Now load the scheme.  If a value is changed above, we'll keep the settings
 // If not, we'll keep those defined by the scheme
 // Setting $scheme to '' wasn't working for some reason, so we'll check it's
@@ -81,7 +100,7 @@ if (!empty($_REQUEST['scheme'])) {
 
 $scheme = Strings::sanitizeFilePathItem($scheme ?? '');
 
-if (($scheme) && ($scheme != '---')) {
+if ($scheme && ($scheme != '---')) {
 	if (file_exists('view/theme/frio/scheme/' . $scheme . '.php')) {
 		$schemefile = 'view/theme/frio/scheme/' . $scheme . '.php';
 		require_once $schemefile;
@@ -104,7 +123,7 @@ if (!$scheme) {
 	}
 }
 
-$contentbg_transp = ((isset($contentbg_transp) && $contentbg_transp != '') ? $contentbg_transp : 100);
+$contentbg_transp = $contentbg_transp ?? 0 ?: 100;
 
 // Calculate some colors in dependance of existing colors.
 // Some colors are calculated to don't have too many selection
diff --git a/view/theme/frio/theme.php b/view/theme/frio/theme.php
index a8db26184..f446f3b17 100644
--- a/view/theme/frio/theme.php
+++ b/view/theme/frio/theme.php
@@ -27,6 +27,10 @@ const FRIO_SCHEME_ACCENT_PURPLE = '#a54bad';
 const FRIO_SCHEME_ACCENT_GREEN  = '#218f39';
 const FRIO_SCHEME_ACCENT_PINK   = '#d900a9';
 
+/*
+ * This script can be included even when the app is in maintenance mode which requires us to avoid any config call
+ */
+
 function frio_init(App $a)
 {
 	global $frio;
@@ -191,50 +195,52 @@ function frio_contact_photo_menu(App $a, &$args)
  */
 function frio_remote_nav(App $a, array &$nav_info)
 {
-	// get the homelink from $_XSESSION
-	$homelink = Model\Profile::getMyURL();
-	if (!$homelink) {
-		$homelink = Session::get('visitor_home', '');
-	}
+	if (DI::mode()->has(App\Mode::MAINTENANCEDISABLED)) {
+		// get the homelink from $_SESSION
+		$homelink = Model\Profile::getMyURL();
+		if (!$homelink) {
+			$homelink = Session::get('visitor_home', '');
+		}
 
-	// since $userinfo isn't available for the hook we write it to the nav array
-	// this isn't optimal because the contact query will be done now twice
-	$fields = ['id', 'url', 'avatar', 'micro', 'name', 'nick', 'baseurl', 'updated'];
-	if ($a->isLoggedIn()) {
-		$remoteUser = Contact::selectFirst($fields, ['uid' => $a->getLoggedInUserId(), 'self' => true]);
-	} elseif (!local_user() && remote_user()) {
-		$remoteUser = Contact::getById(remote_user(), $fields);
-		$nav_info['nav']['remote'] = DI::l10n()->t('Guest');
-	} elseif (Model\Profile::getMyURL()) {
-		$remoteUser = Contact::getByURL($homelink, null, $fields);
-		$nav_info['nav']['remote'] = DI::l10n()->t('Visitor');
-	} else {
-		$remoteUser = null;
-	}
+		// since $userinfo isn't available for the hook we write it to the nav array
+		// this isn't optimal because the contact query will be done now twice
+		$fields = ['id', 'url', 'avatar', 'micro', 'name', 'nick', 'baseurl', 'updated'];
+		if ($a->isLoggedIn()) {
+			$remoteUser = Contact::selectFirst($fields, ['uid' => $a->getLoggedInUserId(), 'self' => true]);
+		} elseif (!local_user() && remote_user()) {
+			$remoteUser                = Contact::getById(remote_user(), $fields);
+			$nav_info['nav']['remote'] = DI::l10n()->t('Guest');
+		} elseif (Model\Profile::getMyURL()) {
+			$remoteUser                = Contact::getByURL($homelink, null, $fields);
+			$nav_info['nav']['remote'] = DI::l10n()->t('Visitor');
+		} else {
+			$remoteUser = null;
+		}
 
-	if (DBA::isResult($remoteUser)) {
-		$nav_info['userinfo'] = [
-			'icon' => Contact::getMicro($remoteUser),
-			'name' => $remoteUser['name'],
-		];
-		$server_url = $remoteUser['baseurl'];
-	}
+		if (DBA::isResult($remoteUser)) {
+			$nav_info['userinfo'] = [
+				'icon' => Contact::getMicro($remoteUser),
+				'name' => $remoteUser['name'],
+			];
+			$server_url           = $remoteUser['baseurl'];
+		}
 
-	if (!local_user() && !empty($server_url) && !is_null($remoteUser)) {
-		// user menu
-		$nav_info['nav']['usermenu'][] = [$server_url . '/profile/' . $remoteUser['nick'], DI::l10n()->t('Status'), '', DI::l10n()->t('Your posts and conversations')];
-		$nav_info['nav']['usermenu'][] = [$server_url . '/profile/' . $remoteUser['nick'] . '/profile', DI::l10n()->t('Profile'), '', DI::l10n()->t('Your profile page')];
-		$nav_info['nav']['usermenu'][] = [$server_url . '/photos/' . $remoteUser['nick'], DI::l10n()->t('Photos'), '', DI::l10n()->t('Your photos')];
-		$nav_info['nav']['usermenu'][] = [$server_url . '/profile/' . $remoteUser['nick'] . '/media', DI::l10n()->t('Media'), '', DI::l10n()->t('Your postings with media')];
-		$nav_info['nav']['usermenu'][] = [$server_url . '/events/', DI::l10n()->t('Events'), '', DI::l10n()->t('Your events')];
+		if (!local_user() && !empty($server_url) && !is_null($remoteUser)) {
+			// user menu
+			$nav_info['nav']['usermenu'][] = [$server_url . '/profile/' . $remoteUser['nick'], DI::l10n()->t('Status'), '', DI::l10n()->t('Your posts and conversations')];
+			$nav_info['nav']['usermenu'][] = [$server_url . '/profile/' . $remoteUser['nick'] . '/profile', DI::l10n()->t('Profile'), '', DI::l10n()->t('Your profile page')];
+			$nav_info['nav']['usermenu'][] = [$server_url . '/photos/' . $remoteUser['nick'], DI::l10n()->t('Photos'), '', DI::l10n()->t('Your photos')];
+			$nav_info['nav']['usermenu'][] = [$server_url . '/profile/' . $remoteUser['nick'] . '/media', DI::l10n()->t('Media'), '', DI::l10n()->t('Your postings with media')];
+			$nav_info['nav']['usermenu'][] = [$server_url . '/events/', DI::l10n()->t('Events'), '', DI::l10n()->t('Your events')];
 
-		// navbar links
-		$nav_info['nav']['network'] = [$server_url . '/network', DI::l10n()->t('Network'), '', DI::l10n()->t('Conversations from your friends')];
-		$nav_info['nav']['events'] = [$server_url . '/events', DI::l10n()->t('Events'), '', DI::l10n()->t('Events and Calendar')];
-		$nav_info['nav']['messages'] = [$server_url . '/message', DI::l10n()->t('Messages'), '', DI::l10n()->t('Private mail')];
-		$nav_info['nav']['settings'] = [$server_url . '/settings', DI::l10n()->t('Settings'), '', DI::l10n()->t('Account settings')];
-		$nav_info['nav']['contacts'] = [$server_url . '/contact', DI::l10n()->t('Contacts'), '', DI::l10n()->t('Manage/edit friends and contacts')];
-		$nav_info['nav']['sitename'] = DI::config()->get('config', 'sitename');
+			// navbar links
+			$nav_info['nav']['network']  = [$server_url . '/network', DI::l10n()->t('Network'), '', DI::l10n()->t('Conversations from your friends')];
+			$nav_info['nav']['events']   = [$server_url . '/events', DI::l10n()->t('Events'), '', DI::l10n()->t('Events and Calendar')];
+			$nav_info['nav']['messages'] = [$server_url . '/message', DI::l10n()->t('Messages'), '', DI::l10n()->t('Private mail')];
+			$nav_info['nav']['settings'] = [$server_url . '/settings', DI::l10n()->t('Settings'), '', DI::l10n()->t('Account settings')];
+			$nav_info['nav']['contacts'] = [$server_url . '/contact', DI::l10n()->t('Contacts'), '', DI::l10n()->t('Manage/edit friends and contacts')];
+			$nav_info['nav']['sitename'] = DI::config()->get('config', 'sitename');
+		}
 	}
 }
 
diff --git a/view/theme/quattro/style.php b/view/theme/quattro/style.php
index 112eafe0d..e6c35d351 100644
--- a/view/theme/quattro/style.php
+++ b/view/theme/quattro/style.php
@@ -21,24 +21,27 @@
 
 use Friendica\DI;
 
-$uid = $_REQUEST['puid'] ?? 0;
-
-$color = false;
+/*
+ * This script can be included when the maintenance mode is on, which requires us to avoid any config call and
+ * use the following hardcoded defaults
+ */
+$color = 'dark';
 $quattro_align = false;
-$site_color = DI::config()->get("quattro", "color", "dark");
-$site_quattro_align = DI::config()->get("quattro", "align", false);
+$textarea_font_size = '20';
+$post_font_size = '12';
 
-if ($uid) {
-	$color = DI::pConfig()->get($uid, "quattro", "color", false);
-	$quattro_align = DI::pConfig()->get($uid, 'quattro', 'align', false);
-}
+if (DI::mode()->has(\Friendica\App\Mode::MAINTENANCEDISABLED)) {
+	$site_color = DI::config()->get("quattro", "color", $color);
+	$site_quattro_align = DI::config()->get("quattro", "align", $quattro_align);
+	$site_textarea_font_size = DI::config()->get("quattro", "tfs", $textarea_font_size);
+	$site_post_font_size = DI::config()->get("quattro", "pfs", $post_font_size);
 
-if ($color === false) {
-	$color = $site_color;
-}
+	$uid = $_REQUEST['puid'] ?? 0;
 
-if ($quattro_align === false) {
-	$quattro_align = $site_quattro_align;
+	$color = DI::pConfig()->get($uid, "quattro", "color", $site_color);
+	$quattro_align = DI::pConfig()->get($uid, 'quattro', 'align', $site_quattro_align);
+	$textarea_font_size = DI::pConfig()->get($uid, "quattro", "tfs", $site_textarea_font_size);
+	$post_font_size = DI::pConfig()->get($uid, "quattro", "pfs", $site_post_font_size);
 }
 
 $color = \Friendica\Util\Strings::sanitizeFilePathItem($color);
@@ -59,24 +62,6 @@ if ($quattro_align == "center") {
 }
 
 
-$textarea_font_size = false;
-$post_font_size = false;
-
-$site_textarea_font_size = DI::config()->get("quattro", "tfs", "20");
-$site_post_font_size = DI::config()->get("quattro", "pfs", "12");
-
-if ($uid) {
-	$textarea_font_size = DI::pConfig()->get($uid, "quattro", "tfs", false);
-	$post_font_size = DI::pConfig()->get($uid, "quattro", "pfs", false);
-}
-
-if ($textarea_font_size === false) {
-	$textarea_font_size = $site_textarea_font_size;
-}
-if ($post_font_size === false) {
-	$post_font_size = $site_post_font_size;
-}
-
 echo "
 	textarea { font-size: ${textarea_font_size}px; }
 	.wall-item-comment-wrapper .comment-edit-text-full { font-size: ${textarea_font_size}px; }
diff --git a/view/theme/quattro/theme.php b/view/theme/quattro/theme.php
index 3ff9302c8..df17a7fd9 100644
--- a/view/theme/quattro/theme.php
+++ b/view/theme/quattro/theme.php
@@ -10,6 +10,10 @@
 use Friendica\App;
 use Friendica\DI;
 
+/*
+ * This script can be included even when the app is in maintenance mode which requires us to avoid any config call
+ */
+
 function quattro_init(App $a) {
 	DI::page()['htmlhead'] .= '<script src="'.DI::baseUrl().'/view/theme/quattro/tinycon.min.js"></script>';
 	DI::page()['htmlhead'] .= '<script src="'.DI::baseUrl().'/view/theme/quattro/js/quattro.js"></script>';;
diff --git a/view/theme/smoothly/theme.php b/view/theme/smoothly/theme.php
index e20e9003f..9cc5b4a22 100644
--- a/view/theme/smoothly/theme.php
+++ b/view/theme/smoothly/theme.php
@@ -14,6 +14,10 @@ use Friendica\App;
 use Friendica\Core\Renderer;
 use Friendica\DI;
 
+/*
+ * This script can be included even when the app is in maintenance mode which requires us to avoid any config call
+ */
+
 function smoothly_init(App $a) {
 	Renderer::setActiveTemplateEngine('smarty3');
 
diff --git a/view/theme/vier/style.php b/view/theme/vier/style.php
index 8e31a14bf..ff888dac6 100644
--- a/view/theme/vier/style.php
+++ b/view/theme/vier/style.php
@@ -23,16 +23,16 @@ use Friendica\Core\Logger;
 use Friendica\DI;
 use Friendica\Network\HTTPException\NotModifiedException;
 
-$uid = $_REQUEST['puid'] ?? 0;
+/*
+ * This script can be included when the maintenance mode is on, which requires us to avoid any config call and
+ * use the following hardcoded default
+ */
+$style = 'plus';
 
-$style = DI::pConfig()->get($uid, 'vier', 'style');
+if (DI::mode()->has(\Friendica\App\Mode::MAINTENANCEDISABLED)) {
+	$uid = $_REQUEST['puid'] ?? 0;
 
-if (empty($style)) {
-	$style = DI::config()->get('vier', 'style');
-}
-
-if (empty($style)) {
-	$style = "plus";
+	$style = DI::pConfig()->get($uid, 'vier', 'style', DI::config()->get('vier', 'style', $style));
 }
 
 $stylecss = '';
diff --git a/view/theme/vier/theme.php b/view/theme/vier/theme.php
index c15629838..a548d0a7d 100644
--- a/view/theme/vier/theme.php
+++ b/view/theme/vier/theme.php
@@ -19,6 +19,10 @@ use Friendica\DI;
 use Friendica\Model\Contact;
 use Friendica\Util\Strings;
 
+/*
+ * This script can be included even when the app is in maintenance mode which requires us to avoid any config call
+ */
+
 function vier_init(App $a)
 {
 	$a->setThemeInfoValue('events_in_profile', false);
@@ -27,7 +31,12 @@ function vier_init(App $a)
 
 	$args = DI::args();
 
-	if ($args->get(0) === 'profile' && $args->get(1) === ($a->getLoggedInUserNickname() ?? '') || $args->get(0) === 'network' && local_user()
+	if (
+		DI::mode()->has(App\Mode::MAINTENANCEDISABLED)
+		&& (
+			$args->get(0) === 'profile' && $args->get(1) === ($a->getLoggedInUserNickname() ?? '')
+			|| $args->get(0) === 'network' && local_user()
+		)
 	) {
 		vier_community_info();