runtime error

Exit code: 3. Reason: port File "<frozen importlib._bootstrap>", line 1027, in _find_and_load File "<frozen importlib._bootstrap>", line 1006, in _find_and_load_unlocked File "<frozen importlib._bootstrap>", line 688, in _load_unlocked File "<frozen importlib._bootstrap_external>", line 883, in exec_module File "<frozen importlib._bootstrap>", line 241, in _call_with_frames_removed File "/app/run.py", line 4, in <module> app = create_app() File "/app/app/__init__.py", line 17, in create_app client = MongoClient(Config.MONGO_URI, serverSelectionTimeoutMS=5000) File "/usr/local/lib/python3.10/site-packages/pymongo/synchronous/mongo_client.py", line 891, in __init__ self._get_topology() # type: ignore[unused-coroutine] File "/usr/local/lib/python3.10/site-packages/pymongo/synchronous/mongo_client.py", line 1758, in _get_topology self._resolve_srv() File "/usr/local/lib/python3.10/site-packages/pymongo/synchronous/mongo_client.py", line 910, in _resolve_srv res = uri_parser._parse_srv( File "/usr/local/lib/python3.10/site-packages/pymongo/synchronous/uri_parser.py", line 168, in _parse_srv nodes = dns_resolver.get_hosts() File "/usr/local/lib/python3.10/site-packages/pymongo/synchronous/srv_resolver.py", line 157, in get_hosts _, nodes = self._get_srv_response_and_hosts(True) File "/usr/local/lib/python3.10/site-packages/pymongo/synchronous/srv_resolver.py", line 131, in _get_srv_response_and_hosts results = self._resolve_uri(encapsulate_errors) File "/usr/local/lib/python3.10/site-packages/pymongo/synchronous/srv_resolver.py", line 125, in _resolve_uri raise ConfigurationError(str(exc)) from None pymongo.errors.ConfigurationError: The DNS query name does not exist: _mongodb._tcp.cluster0.xp06xcn.mongodb.net. [2026-07-22 19:20:08 +0000] [7] [INFO] Worker exiting (pid: 7) [2026-07-22 19:20:08 +0000] [1] [ERROR] Worker (pid:7) exited with code 3 [2026-07-22 19:20:08 +0000] [1] [ERROR] Shutting down: Master [2026-07-22 19:20:08 +0000] [1] [ERROR] Reason: Worker failed to boot.

Container logs: