runtime error

ers.py", line 486, in send resp = conn.urlopen( File "/home/user/.local/lib/python3.8/site-packages/urllib3/connectionpool.py", line 845, in urlopen retries = retries.increment( File "/home/user/.local/lib/python3.8/site-packages/urllib3/util/retry.py", line 515, in increment raise MaxRetryError(_pool, url, reason) from reason # type: ignore[arg-type] urllib3.exceptions.MaxRetryError: HTTPSConnectionPool(host='www.dropbox.com', port=443): Max retries exceeded with url: /s/b5g97xo901zb3ds/pothole_example.jpg?dl=1 (Caused by NameResolutionError("<urllib3.connection.HTTPSConnection object at 0x7fe4f8b69100>: Failed to resolve 'www.dropbox.com' ([Errno -3] Temporary failure in name resolution)")) During handling of the above exception, another exception occurred: Traceback (most recent call last): File "app.py", line 28, in <module> download_file(file_urls[i], f"image_{i}.jpg") File "app.py", line 20, in download_file file = requests.get(url) File "/home/user/.local/lib/python3.8/site-packages/requests/api.py", line 73, in get return request("get", url, params=params, **kwargs) File "/home/user/.local/lib/python3.8/site-packages/requests/api.py", line 59, in request return session.request(method=method, url=url, **kwargs) File "/home/user/.local/lib/python3.8/site-packages/requests/sessions.py", line 589, in request resp = self.send(prep, **send_kwargs) File "/home/user/.local/lib/python3.8/site-packages/requests/sessions.py", line 703, in send r = adapter.send(request, **kwargs) File "/home/user/.local/lib/python3.8/site-packages/requests/adapters.py", line 519, in send raise ConnectionError(e, request=request) requests.exceptions.ConnectionError: HTTPSConnectionPool(host='www.dropbox.com', port=443): Max retries exceeded with url: /s/b5g97xo901zb3ds/pothole_example.jpg?dl=1 (Caused by NameResolutionError("<urllib3.connection.HTTPSConnection object at 0x7fe4f8b69100>: Failed to resolve 'www.dropbox.com' ([Errno -3] Temporary failure in name resolution)"))

Container logs: