Error in determining Temporal coverage

[100mi]

meta-facts-metafacts-server-1  | /app/./app/utils/spatial_coverage.py:17: FutureWarning: Passing a set as an indexer is deprecated and will raise in a future version. Use a list instead.
meta-facts-metafacts-server-1  |   self.dataset[self.get_geographic_columns].nunique(dropna=True)
meta-facts-metafacts-server-1  | /app/./app/utils/spatial_coverage.py:17: FutureWarning: Passing a set as an indexer is deprecated and will raise in a future version. Use a list instead.
meta-facts-metafacts-server-1  |   self.dataset[self.get_geographic_columns].nunique(dropna=True)
meta-facts-metafacts-server-1  | INFO:     192.168.96.1:61472 - "POST /meta-data/s3 HTTP/1.1" 500 Internal Server Error
meta-facts-metafacts-server-1  | ERROR:    Exception in ASGI application
meta-facts-metafacts-server-1  | Traceback (most recent call last):
meta-facts-metafacts-server-1  |   File "/usr/local/lib/python3.9/site-packages/uvicorn/protocols/http/httptools_impl.py", line 390, in run_asgi
meta-facts-metafacts-server-1  |     result = await app(self.scope, self.receive, self.send)
meta-facts-metafacts-server-1  |   File "/usr/local/lib/python3.9/site-packages/uvicorn/middleware/proxy_headers.py", line 45, in __call__
meta-facts-metafacts-server-1  |     return await self.app(scope, receive, send)
meta-facts-metafacts-server-1  |   File "/usr/local/lib/python3.9/site-packages/fastapi/applications.py", line 208, in __call__
meta-facts-metafacts-server-1  |     await super().__call__(scope, receive, send)
meta-facts-metafacts-server-1  |   File "/usr/local/lib/python3.9/site-packages/starlette/applications.py", line 112, in __call__
meta-facts-metafacts-server-1  |     await self.middleware_stack(scope, receive, send)
meta-facts-metafacts-server-1  |   File "/usr/local/lib/python3.9/site-packages/starlette/middleware/errors.py", line 181, in __call__
meta-facts-metafacts-server-1  |     raise exc
meta-facts-metafacts-server-1  |   File "/usr/local/lib/python3.9/site-packages/starlette/middleware/errors.py", line 159, in __call__
meta-facts-metafacts-server-1  |     await self.app(scope, receive, _send)
meta-facts-metafacts-server-1  |   File "/usr/local/lib/python3.9/site-packages/starlette/middleware/cors.py", line 92, in __call__
meta-facts-metafacts-server-1  |     await self.simple_response(scope, receive, send, request_headers=headers)
meta-facts-metafacts-server-1  |   File "/usr/local/lib/python3.9/site-packages/starlette/middleware/cors.py", line 147, in simple_response
meta-facts-metafacts-server-1  |     await self.app(scope, receive, send)
meta-facts-metafacts-server-1  |   File "/usr/local/lib/python3.9/site-packages/starlette/exceptions.py", line 82, in __call__
meta-facts-metafacts-server-1  |     raise exc
meta-facts-metafacts-server-1  |   File "/usr/local/lib/python3.9/site-packages/starlette/exceptions.py", line 71, in __call__
meta-facts-metafacts-server-1  |     await self.app(scope, receive, sender)
meta-facts-metafacts-server-1  |   File "/usr/local/lib/python3.9/site-packages/starlette/routing.py", line 656, in __call__
meta-facts-metafacts-server-1  |     await route.handle(scope, receive, send)
meta-facts-metafacts-server-1  |   File "/usr/local/lib/python3.9/site-packages/starlette/routing.py", line 259, in handle
meta-facts-metafacts-server-1  |     await self.app(scope, receive, send)
meta-facts-metafacts-server-1  |   File "/usr/local/lib/python3.9/site-packages/starlette/routing.py", line 61, in app
meta-facts-metafacts-server-1  |     response = await func(request)
meta-facts-metafacts-server-1  |   File "/usr/local/lib/python3.9/site-packages/fastapi/routing.py", line 226, in app
meta-facts-metafacts-server-1  |     raw_response = await run_endpoint_function(
meta-facts-metafacts-server-1  |   File "/usr/local/lib/python3.9/site-packages/fastapi/routing.py", line 159, in run_endpoint_function
meta-facts-metafacts-server-1  |     return await dependant.call(**values)
meta-facts-metafacts-server-1  |   File "/app/./app/api/api_v1/routers/meta_data.py", line 70, in get_meta_data_from_s3
meta-facts-metafacts-server-1  |     meta_data = await create_meta_data_for_s3_bucket(
meta-facts-metafacts-server-1  |   File "/app/./app/utils/meta_data.py", line 135, in create_meta_data_for_s3_bucket
meta-facts-metafacts-server-1  |     results = await asyncio.gather(*tasks)
meta-facts-metafacts-server-1  |   File "/app/./app/utils/meta_data.py", line 106, in get_dataset_meta_data_for_s3_file
meta-facts-metafacts-server-1  |     result = await asyncio.gather(
meta-facts-metafacts-server-1  |   File "/app/./app/utils/temporal_coverage.py", line 107, in get_temporal_coverage
meta-facts-metafacts-server-1  |     year_in_sequence = is_sequence(year_mapping)
meta-facts-metafacts-server-1  |   File "/app/./app/utils/temporal_coverage.py", line 65, in is_sequence
meta-facts-metafacts-server-1  |     min_val = min(combine_all_years)
meta-facts-metafacts-server-1  | ValueError: min() arg is an empty sequence
meta-facts-metafacts-server-1  | /app/./app/utils/spatial_coverage.py:17: FutureWarning: Passing a set as an indexer is deprecated and will raise in a future version. Use a list instead.
meta-facts-metafacts-server-1  |   self.dataset[self.get_geographic_columns].nunique(dropna=True)
meta-facts-metafacts-server-1  | /app/./app/utils/spatial_coverage.py:17: FutureWarning: Passing a set as an indexer is deprecated and will raise in a future version. Use a list instead.

1. Any error in determining any property in meta-data should not terminate the complete process.
2. Fix the FututreWarning issue.