From c4f50d06e2ac89597c9333135e4b62a43830b78f Mon Sep 17 00:00:00 2001
From: Michael <heluecht@pirati.ca>
Date: Tue, 24 Nov 2020 23:34:34 +0000
Subject: [PATCH] Fix fatal error

---
 src/Protocol/ActivityPub/Receiver.php | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/Protocol/ActivityPub/Receiver.php b/src/Protocol/ActivityPub/Receiver.php
index d1426ff5ae..f3794a998c 100644
--- a/src/Protocol/ActivityPub/Receiver.php
+++ b/src/Protocol/ActivityPub/Receiver.php
@@ -104,7 +104,9 @@ class Receiver
 			return;
 		}
 
-		APContact::unMarkForArchival($apcontact);
+		if (!empty($apcontact)) {
+			APContact::unMarkForArchival($apcontact);
+		}
 
 		$http_signer = HTTPSignature::getSigner($body, $header);
 		if (empty($http_signer)) {