Uninstall Cool Solution LDAP Custom ACLs in UCS 5.x


I had installed LDAP Custom ACLs from the Cool Solutions Repository before upgrading to UCS 5. Now, I cannot access the LDAP branches I configured authorisation for. I can see them in the Groups and User modules, but neither move nor delete entries there. I cannot see them in the UMC LDAP module. This is true for my personal domain administrator account as well as for the Administrator account. At the moment, I resort to Apache Directory Studio but I’d really like to get rid of the config denying me access in the UMC.

Any hints?