Unable to perform a backup to OneDrive: Transport error: Extension transport: ext://one-drive-backup/server/ resulted in a 504 Gateway Timeout

Symptoms

• The following error message is shown as Plesk

  PLESK_ERROR: Unable to upload the archive domains/example.com/backup_statistics_1904241438.tgz to the external storage: Transport error: Extension transport: ext://one-drive-backup/server/: Server error: POST https://graph.microsoft.com/v1.0%2Fme%2Fdrive%2Fspecial%2Fapproot/children resulted in a 504 Gateway Timeout response: { "error": { "code": "UnknownError", "message": "", "innerError": { "request-id": "0e41054e-cdd (truncated...)

• Re-try to perform the backup finish successfully.

Cause

The connection to OneDrive fails with error 504 due to external factors to the extension.

Plesk bug with ID EXTPLESK-856 has been created in order to improve the handling of such errors.

Resolution

Possible workarounds:

• Wait for a few minutes and re-try to create the backup.
• Contact Microsoft Support for a permanent solution.