blocked administrator

Hi,

By accident i tried to change a user role for a user she got limitd Administrator acces so i blocked everything my customer asked. In the hurry i did not see i was working in the overall administrator role instead of the specific user. Now are most important functions blocked we can not even get acces ourselfs. I removed AAM from the server and installed a new version however all blocked information is still there so tha did not help. Can you please help me out? Thank for taking care.

Kind regards

Ton