Scheduled Plesk baсkup to a remote storage finishes with error: pmm-ras failed (Error code = 1): Repository error: Failed to read backup. Unable to find archive metadata

Symptoms

• Plesk Administrator receives an email after creating a scheduled backup to OneDrive or other remote storage:

  pmm-ras failed (Error code = 1): Repository error: Failed to read backup backup_1912140200_1912180201.zip: Import error: Unable to find archive metadata. The archive is not valid Plesk backup or has been created in an unsupported Plesk version

  Note: The mentioned file is not the newly created backup but an old one.

• Similar error can be found in an attempt to remove the backup file from the error directly via the Plesk interface in Tools & Settings > Backup Manager.

• Backups may not be rotated properly in accordance with the settings.

Cause

Corrupted backup file in the storage.

Resolution

Remove the file backup_1912140200_1912180201.zip mentioned in the error and other backup_1912140200*.zip files directly from the remote storage via its interface.