Can't access data from S3 Buckets

import fsspec
s3_fs = fsspec.filesystem("s3",  key="xxxxxx', secret="xxxxxxxxx",
                         client_kwargs={
                        "region_name": 'xxxxxxx',
                    })
s3_fs.ls('s3://')

It lists all the buckets but when i use

s3_fs.ls('s3://Bucket_name')
It returns empty

Same bucket can be accessed with boto3 and all the contents of the bucket but using fsspec returns empty. Please help me solve this issue

If I try to read the file using fsspec.open it gives bad request error because file was not found

I have also tried s3fs it has the same issue

Start with the shown Python reproduction using fsspec.filesystem("s3") and compare s3_fs.ls("s3://") with s3_fs.ls("s3://Bucket_name"). Check the same bucket through boto3, then verify that the fsspec listing exposes the expected contents and that fsspec.open can read a file without the reported bad request.