When I click on a user from the web interface I get this error message at the top of the page :
The search filter cannot be recognized. (Server: domainname)
Before I did change on certain LDAP filters (Edit Home Page Action). Possible this is the cause. But now I removed all "Allow selecting only AD objects that match the specific LDAP Filter" from all "Home page Actions" I have modified but the error is still there.
It happens only to a specific web site (not Administrator but a custom one for service desk).
What can I do to troubleshoot and find out the cause?