Scheduled backups can not be created with no errors in Plesk GUI.
Plesk admin receives the following message:
<www.example.com> An error occurred during the scheduled backup.
Plesk entry point: https://panel.example.com/
The following errors occurred during the scheduled backup process:
expected str, bytes or os.PathLike object, not int
A similar error can be found in the
Plesk has been recently updated to Plesk Obsidian 18.0.47.
#PPPM-13739 "Creation of a remote backup with the enabled “Create a multivolume backup, volume size (MB)” option no longer results in the “Error: The backup process failed: expected str, bytes or os.PathLike object, not int” error."
- Plesk Obsidian 03 October 2022
In case the update is not possible for some reason use the following