only attempt fetch if zotfinger actually returned something

2 files changed, 5 insertions, 4 deletions

diff --git a/Zotlabs/Lib/Activity.php b/Zotlabs/Lib/Activity.php
index f59992cc3..f4c395906 100644
--- a/Zotlabs/Lib/Activity.php
+++ b/Zotlabs/Lib/Activity.php
@@ -1767,7 +1767,7 @@ class Activity {
 					$am['type'] === 'Multikey' &&
 					str_starts_with($am['publicKeyMultibase'], 'z6Mk')
 				) {
-					$epubkey = $person_obj['assertionMethod']['publicKeyMultibase'];
+					$epubkey = $am['publicKeyMultibase'];
 				}
 			}
 		}
diff --git a/Zotlabs/Lib/ActivityStreams.php b/Zotlabs/Lib/ActivityStreams.php
index 98fc73462..f0fb7c9ae 100644
--- a/Zotlabs/Lib/ActivityStreams.php
+++ b/Zotlabs/Lib/ActivityStreams.php
@@ -327,9 +327,10 @@ class ActivityStreams {
 			if ($x === null && strpos($url, '/channel/')) {
 				// look for other nomadic channels which might be alive
 				$zf = Zotfinger::exec($url, $channel);
-
-				$url = $zf['signature']['signer'];
-				$x = Activity::fetch($url, $channel);
+				if ($zf) {
+					$url = $zf['signature']['signer'];
+					$x = Activity::fetch($url, $channel);
+				}
 			}
 		}