diff --git a/src/Core/Renderer.php b/src/Core/Renderer.php
index 40b3fb118..bf4cd3907 100644
--- a/src/Core/Renderer.php
+++ b/src/Core/Renderer.php
@@ -86,7 +86,10 @@ class Renderer
 			$output = $t->replaceMacros($template, $vars);
 		} catch (Exception $e) {
 			DI::logger()->critical($e->getMessage(), ['template' => $template, 'vars' => $vars]);
-			throw new InternalServerErrorException(DI::l10n()->t('Friendica can\'t display this page at the moment, please contact the administrator or check the Friendica log for errors.'));
+			$message = is_site_admin() ?
+				$e->getMessage() :
+				DI::l10n()->t('Friendica can\'t display this page at the moment, please contact the administrator.');
+			throw new InternalServerErrorException($message);
 		}
 
 		DI::profiler()->saveTimestamp($stamp1, "rendering", System::callstack());
@@ -112,7 +115,10 @@ class Renderer
 			$template = $t->getTemplateFile($file, $subDir);
 		} catch (Exception $e) {
 			DI::logger()->critical($e->getMessage(), ['file' => $file, 'subDir' => $subDir]);
-			throw new InternalServerErrorException(DI::l10n()->t('Friendica can\'t display this page at the moment, please contact the administrator or check the Friendica log for errors.'));
+			$message = is_site_admin() ?
+				$e->getMessage() :
+				DI::l10n()->t('Friendica can\'t display this page at the moment, please contact the administrator.');
+			throw new InternalServerErrorException($message);
 		}
 
 		DI::profiler()->saveTimestamp($stamp1, "file", System::callstack());
@@ -134,8 +140,12 @@ class Renderer
 			$name = $v['name'];
 			self::$template_engines[$name] = $class;
 		} else {
-			DI::logger()->critical(DI::l10n()->t('template engine cannot be registered without a name.'), ['class' => $class]);
-			throw new InternalServerErrorException(DI::l10n()->t('Friendica can\'t display this page at the moment, please contact the administrator or check the Friendica log for errors.'));
+			$admin_message = DI::l10n()->t('template engine cannot be registered without a name.');
+			DI::logger()->critical($admin_message, ['class' => $class]);
+			$message = is_site_admin() ?
+				$admin_message :
+				DI::l10n()->t('Friendica can\'t display this page at the moment, please contact the administrator.');
+			throw new InternalServerErrorException($message);
 		}
 	}
 
@@ -164,8 +174,12 @@ class Renderer
 			}
 		}
 
-		DI::logger()->critical(DI::l10n()->t('template engine is not registered!'), ['template_engine' => $template_engine]);
-		throw new InternalServerErrorException(DI::l10n()->t('Friendica can\'t display this page at the moment, please contact the administrator or check the Friendica log for errors.'));
+		$admin_message = DI::l10n()->t('template engine is not registered!');
+		DI::logger()->critical($admin_message, ['template_engine' => $template_engine]);
+		$message = is_site_admin() ?
+			$admin_message :
+			DI::l10n()->t('Friendica can\'t display this page at the moment, please contact the administrator.');
+		throw new InternalServerErrorException($message);
 	}
 
 	/**
diff --git a/src/Render/FriendicaSmartyEngine.php b/src/Render/FriendicaSmartyEngine.php
index 9b3739d98..2c76ff025 100644
--- a/src/Render/FriendicaSmartyEngine.php
+++ b/src/Render/FriendicaSmartyEngine.php
@@ -49,8 +49,12 @@ final class FriendicaSmartyEngine extends TemplateEngine
 		$this->smarty = new FriendicaSmarty($this->theme, $this->theme_info);
 
 		if (!is_writable(DI::basePath() . '/view/smarty3')) {
-			DI::logger()->critical(DI::l10n()->t('The folder view/smarty3/ must be writable by webserver.'));
-			throw new InternalServerErrorException(DI::l10n()->t('Friendica can\'t display this page at the moment, please contact the administrator or check the Friendica log for errors.'));
+			$admin_message = DI::l10n()->t('The folder view/smarty3/ must be writable by webserver.');
+			DI::logger()->critical($admin_message);
+			$message = is_site_admin() ?
+				$admin_message :
+				DI::l10n()->t('Friendica can\'t display this page at the moment, please contact the administrator.');
+			throw new InternalServerErrorException($message);
 		}
 	}