You do not have the proper rights to view or open the 'storage' bucket, hence the error.
The latest version of the repository_s3bucket is using the local_aws plugin to support more recent regions and code. But this repository is maintained by Catalyst and already more than a year old. The most recent version of the local_aws plugin is available at https://github.com/ewallah/moodle-local_aws
The latest version of the repository_s3bucket is using the local_aws plugin to support more recent regions and code. But this repository is maintained by Catalyst and already more than a year old. The most recent version of the local_aws plugin is available at https://github.com/ewallah/moodle-local_aws