• 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.

COM Error C00CE554

Well was easy

Ok, I solved it.

Swsoft does not say that after copying the files you have to delete all ".security" files.

Those files are on the root folder of every domain (not httpdocs, the real root folder).

Then just restart the services and it should work.
 
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