Add some debug

federation/outbound.py

@@ -172,6 +172,8 @@ def handle_send(
                 rendered_payload = json.dumps(payload).encode("utf-8")
             except Exception as ex:
                 logger.error("handle_send - failed to generate payload for %s, %s: %s", fid, endpoint, ex)
+                import traceback
+                logger.error(str(traceback.format_stack()))
                 continue
             payloads.append({
                 "auth": get_http_authentication(author_user.rsa_private_key, f"{author_user.id}#main-key"),