Issue Joomla Toolkit, issue after update from J3 to J4

[Ol'arf]

Server operating system version

Debian 11

Plesk version and microupdate number

Version 18.0.56 Update #4

Hello,
we updated a website from J3 to J4 but then it keeps to be J3 in the Toolkit and when I refresh it, I got this Error:
Joomla!: COM_INSTALLER_MSG_UPDATESITES_REBUILD_NOT_PERMITTED
finally i delete the website by accident and now it is not anymore in the list and in the Domain configuration itself, I still see it while it is still shown as J3 page and still provide the same error: Joomla!: COM_INSTALLER_MSG_UPDATESITES_REBUILD_NOT_PERMITTED
Any hint how I can get it back to the list as J4 page?
best reagrds
Olaf