Maintenance Mode – No `wp-admin`

I activated the “maintenance mode” feature, and after logging out of the admin account, I can’t log back in. I have another plugin that changes wp-admin to something else, and because this feature only allows wp-admin to be bypassed, I can no longer get into my website, even after attempting to type in both the url I want to use in place of wp-admin and wp-admin itself. I’ve deleted the .tutor-maintenance file from cPanel, hoping this would solve the issue.

I’m not sure how else to fix this; some insight would be appreciated to help solve the issue.