Admin access to dashboard is banned!!!!

Hi there,
Unfortunately after adding a capability to a non-admin user, the administrator user access to dashboard banned!!! I uninstalled aam from direct admin (deleted aam plugin folder) and got the access again. but as soon as re installing aam, admin access to dashboard blocks. I tried to delete the related tables from phpmyadmin, but couldn’t find the table.I Only deleted two records from wp_options table in which values started by “aam_”, but nothing changed…

Thanks for your help