• Debian 11 is approaching its end-of-life (vendor EOL date - August 31, 2026). Plesk Obsidian 18.0.80 will be the last release to support it.
    If you are running Plesk Obsidian on Debian 11, we recommend you upgrade those servers to Debian 12 using our dist-upgrade tool.
  • We plan to deprecate and remove the support for XML RPC protocol versions earlier than 1.6.9.1 in Plesk Obsidian 18.0.82. We strongly recommend that you update all existing integrations using earlier versions of the XML RPC protocol to comply with the version 1.6.9.1 specification.

Resolved [PPPM-13733] Urgently - can't concat str to bytes

Fixed in 18.0.47 #1
Creation of a domain backup no longer fails when the “Exclude log files” or “Exclude specific files from the backup” options are enabled. (PPPM-13733)

Please update.
 
After update on 18.0.47.1 backup to remote still failed: expected str, bytes or os.PathLike object, not int
 
Some news on this: A new knowledge base article explains that selecting "Multi Volume Backup" still causes the issue. Thanks to @Misho who posted this here:
 
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