Error message help

I’m getting this message:

Error fetching buckets: Access Denied

Unfortunately I did not set up a bucket before I installed your very promising plugins (I have since set up a bucket on the S3 side, not via your plugin). Is that a problem? What can I do to remedy this error? I’m very novice for the record. I’m very eager to see your Pro offering!

https://ww.wp.xz.cn/plugins/amazon-s3-and-cloudfront/