diff --git a/app/activitypub/routes.py b/app/activitypub/routes.py
index fab4bb1a..ae856fe6 100644
--- a/app/activitypub/routes.py
+++ b/app/activitypub/routes.py
@@ -431,6 +431,8 @@ def process_inbox_request(request_json, activitypublog_id, ip_address):
 
                         if user is None:
                             activity_log.exception_message = 'Blocked or unfound user'
+                        elif liked is None:
+                            activity_log.exception_message = 'Unfound object'
                         elif user.is_local():
                             activity_log.exception_message = 'Activity about local content which is already present'
                             activity_log.result = 'ignored'
@@ -465,6 +467,8 @@ def process_inbox_request(request_json, activitypublog_id, ip_address):
                             disliked = find_liked_object(liked_ap_id)
                             if user is None:
                                 activity_log.exception_message = 'Blocked or unfound user'
+                            elif disliked is None:
+                                activity_log.exception_message = 'Unfound object'
                             elif user.is_local():
                                 activity_log.exception_message = 'Activity about local content which is already present'
                                 activity_log.result = 'ignored'
@@ -641,6 +645,8 @@ def process_inbox_request(request_json, activitypublog_id, ip_address):
                     liked = find_liked_object(request_json['object'])
                     if user is None:
                         activity_log.exception_message = 'Blocked or unfound user'
+                    elif liked is None:
+                        activity_log.exception_message = 'Unfound object'
                     elif user.is_local():
                         activity_log.exception_message = 'Activity about local content which is already present'
                         activity_log.result = 'ignored'
@@ -674,6 +680,8 @@ def process_inbox_request(request_json, activitypublog_id, ip_address):
                         disliked = find_liked_object(target_ap_id)
                         if user is None:
                             activity_log.exception_message = 'Blocked or unfound user'
+                        elif disliked is None:
+                            activity_log.exception_message = 'Unfound object'
                         elif user.is_local():
                             activity_log.exception_message = 'Activity about local content which is already present'
                             activity_log.result = 'ignored'