From 95ac2aa54bc98e0c2aceec198de6c37aba7914bf Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Roland=20H=C3=A4der?= <roland@mxchange.org>
Date: Fri, 29 Jul 2022 12:44:34 +0200
Subject: [PATCH] Fixed a possible NULL value (not valid, at least empty
 string)

---
 src/Protocol/DFRN.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Protocol/DFRN.php b/src/Protocol/DFRN.php
index 7593711e56..db3360dd16 100644
--- a/src/Protocol/DFRN.php
+++ b/src/Protocol/DFRN.php
@@ -985,7 +985,7 @@ class DFRN
 				Logger::notice('Unable to find contact details for ' . $contact['id'] . ' - ' . $contact['addr']);
 				return -22;
 			}
-			$pubkey = $fcontact['pubkey'];
+			$pubkey = $fcontact['pubkey'] ?? '';
 		} else {
 			$pubkey = '';
 		}