runtime error

5:48:56 +0000] [1] [INFO] Using worker: sync [2024-05-21 15:48:56 +0000] [8] [INFO] Booting worker with pid: 8 [2024-05-21 15:48:57 +0000] [8] [ERROR] Exception in worker process Traceback (most recent call last): File "/usr/local/lib/python3.9/site-packages/gunicorn/arbiter.py", line 609, in spawn_worker worker.init_process() File "/usr/local/lib/python3.9/site-packages/gunicorn/workers/base.py", line 134, in init_process self.load_wsgi() File "/usr/local/lib/python3.9/site-packages/gunicorn/workers/base.py", line 146, in load_wsgi self.wsgi = self.app.wsgi() File "/usr/local/lib/python3.9/site-packages/gunicorn/app/base.py", line 67, in wsgi self.callable = self.load() File "/usr/local/lib/python3.9/site-packages/gunicorn/app/wsgiapp.py", line 58, in load return self.load_wsgiapp() File "/usr/local/lib/python3.9/site-packages/gunicorn/app/wsgiapp.py", line 48, in load_wsgiapp return util.import_app(self.app_uri) File "/usr/local/lib/python3.9/site-packages/gunicorn/util.py", line 371, in import_app mod = importlib.import_module(module) File "/usr/local/lib/python3.9/importlib/__init__.py", line 127, in import_module return _bootstrap._gcd_import(name[level:], package, level) File "<frozen importlib._bootstrap>", line 1030, in _gcd_import File "<frozen importlib._bootstrap>", line 1007, in _find_and_load File "<frozen importlib._bootstrap>", line 986, in _find_and_load_unlocked File "<frozen importlib._bootstrap>", line 680, in _load_unlocked File "<frozen importlib._bootstrap_external>", line 850, in exec_module File "<frozen importlib._bootstrap>", line 228, in _call_with_frames_removed File "/code/main.py", line 3, in <module> @app.route("/") NameError: name 'app' is not defined [2024-05-21 15:48:57 +0000] [8] [INFO] Worker exiting (pid: 8) [2024-05-21 15:48:57 +0000] [1] [ERROR] Worker (pid:8) exited with code 3 [2024-05-21 15:48:57 +0000] [1] [ERROR] Shutting down: Master [2024-05-21 15:48:57 +0000] [1] [ERROR] Reason: Worker failed to boot.

Container logs: