Cannot create remote backup in Plesk. Error: Unable to export backup: Transport error: Extension transport: ext://one-drive-backup/server/: Required parameter not passed: "refresh_token"

Symptoms

• Error like below is displayed in Plesk under Tools & Settings > Backup Manager:

  PLESK_ERROR: The backup <datetime> was not created.

• Entries like below are found in %plesk_dir%PMM\logs\backup-<datetime>:

  CONFIG_TEXT: WARN [panel] Unable get the amount of free space from the remote storage.
  WARN [panel] BadMethodCallException: Required parameter not passed: "refresh_token"
  file: C:\Program Files (x86)\Plesk\admin\plib\modules\one-drive-backup\vendor\league\oauth2-client\src\Tool\RequiredParameterTrait.php
  ...

  CONFIG_TEXT: [extension/one-drive-backup]: Request header/response:
  PUT ...
  WWW-Authenticate: Bearer realm="OneDriveAPI", error="invalid_token", error_description="Invalid auth token"
  ...

Cause

Microsoft OneDrive Backup is not properly configured.

Resolution

Configure OneDrive Backup as per the documentation.