I’m no longer the Site Admin – why??

If you have access to the database it is really easy:

1.goto the database
2.goto the table wp_users
3.Edit the entry for admin
4.use: https://www.md5encrypter.com/ to encrypt a new password
5.put the password that is encrypted into where the old password was.
6.Make sure user_login is ‘admin’ and user_status is 0.

Save the table record.

cross your fingers.

You don’t have to cross your fingers, and you don’t necessarily have to go into the database with phpmyadmin; there are other methods: Resetting Your Password ? WordPress Codex