Sounds like your user is "corrupted" in the DB, might have some orphans entries.
The part of the code which lead to the error, check for the PHP Version of the domain.
Either, for me, there is a bad entry in your Database (I would think inside "
php_switcher_version_admin"), or somewhere else an orphan entry.
Can't tel more this way, maybe Nuxwin could help by looking at your server directly, without access to your server, I can't see any other reason, honestly.