Reason: Error executing "ListObjectsV2"

Hello.

Are there any more detailed error logs being output?
Are there any problems with the code syntax?
Does the IAM policy you are using have permissions set to view S3?
At a minimum, the following policies are required to view an S3 bucket.
https://docs.aws.amazon.com/service-authorization/latest/reference/list_amazons3.html

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Effect": "Allow",
            "Action": "s3:ListAllMyBuckets",
            "Resource": "arn:aws:s3:::*"
        },
        {
            "Effect": "Allow",
            "Action": "s3:ListBucket",
            "Resource": "arn:aws:s3:::my-bucket"
        }
    ]
}