How to remove administrator in Studio when security group no longer exists?

Already tried using command line - but I'm using 2203LTSR. I don't see any logical reason why removing doing check of AD element (user/group). It seems to be a bug in the logic.

Do you have access to the database?

Yes - however I’m looking for solution without DB modifications. Let me raise bug report to Citrix… 😉

Okay. If you want to do is trough the database:

SELECT *

FROM [**citrixsite**].[DAS].[Administrators]

Solution without DB modifications: 1. Get-administrator // find SID of your user / group 2. Get-administrator - SID „SIS of the user to be remove” | Remove-administrator Credits to Citrix Support