runtime error

ackages/gradio/helpers.py", line 308, in cache prediction = await Context.root_block.process_api( File "/home/user/.local/lib/python3.8/site-packages/gradio/blocks.py", line 1024, in process_api result = await self.call_function( File "/home/user/.local/lib/python3.8/site-packages/gradio/blocks.py", line 836, in call_function prediction = await anyio.to_thread.run_sync( File "/home/user/.local/lib/python3.8/site-packages/anyio/to_thread.py", line 33, in run_sync return await get_asynclib().run_sync_in_worker_thread( File "/home/user/.local/lib/python3.8/site-packages/anyio/_backends/_asyncio.py", line 877, in run_sync_in_worker_thread return await future File "/home/user/.local/lib/python3.8/site-packages/anyio/_backends/_asyncio.py", line 807, in run result = context.run(func, *args) File "app.py", line 60, in greet pdf_path = download_pdf(pdf_url) File "app.py", line 41, in download_pdf response = 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='ratchakitcha.soc.go.th', port=443): Max retries exceeded with url: /documents/140A014N0000000002600.pdf (Caused by NameResolutionError("<urllib3.connection.HTTPSConnection object at 0x7f80ef5dcd00>: Failed to resolve 'ratchakitcha.soc.go.th' ([Errno -3] Temporary failure in name resolution)"))

Container logs: