When you change your role to a different one from SuperAdministrator, you will not be able to change it back on your own, so you would better ask another colleague with SuperAdministrator role to give you back your permissions. In case you do not have such a colleague, please look below for further information:
Please contact us at email@example.com explaining the situation, and we will get back to you as soon as we are able to.
UPDATE fo_contacts SET user_type = 1 WHERE fo_contacts.object_id = [object_id];
UPDATE fo_contacts SET user_type = 1 WHERE fo_contacts.object_id = 2;
Note: Feng onSite Users can also contact us at firstname.lastname@example.org, but in case you want to do it faster you may proceed with the explanation above of course.