Problem to delete user

Hello, I have à problem to delete a xibo user,
i deleted all layouts, campaigns, users files but the user deleting doesn’t work,
I have an unknown error.

I retired the user but nothing changes, and i lost the right to apply modification to it.

Can you help me please?

What CMS version are you using please?

Are you logged in as super admin user type?

The last version
and yes I tried as super-admin, it’s change nothing :confused: