Backup Transport Errors to External Destination S3

I'm encountering transport errors when attempting to back up files to an external destination, S3. The backup system is failing to send various files, including system files and user account backups, to this destination. Here is a summary of the errors: "system_files.tar" and several user account backup files are unable to be sent to the S3 backup I've checked the network connectivity, credentials, and destination configuration, but the issue persists. The error logs provide limited information about the cause of the problem. I would appreciate any guidance or suggestions to diagnose and resolve these transport errors effectively.