[Ashish Kumar (Ashfame)]

Yes, you need to login with a account which has rights to access admin panel to access it.

If you have lost it, then you can fix it in PhpMyAdmin, open table “wp_usermeta” or “bb_usermeta” or whatever your case may be. Change the value of “bb_capabilities” (as per your table prefix) to “a:1:{s:9:”keymaster”;b:1;}” of your user.