I've been playing with the permissions:
Changing permissions is a simple left mouse button click with no confirmation dialog. So how dangerous can it be? clickedy clack.....yeah, I not only locked myself out, but also all of my users as it seems. And I have no possibility to revert this situation; SF not allowing me to remove the "admin" permission from group "admin" did not prevent this disaster. All I see is "Error 403 Read access required". Why is this? I'm the **** admin. Can you help me?