This Guide is part of https://ascee.net/index.php/apply/ Applying Guide. Don’t miss steps.
NOTE: If you have authed in many places in the past, it might be worth periodically checking out which applications have access to your ESI. You can do this in the EvE Online Third Party Applications Portal. Go through the list of authorized applications and remove whatever you don’t recognize. In your case, you should be authorized to at least ASCEE Auth and if you’re already in the Imperium, GoonAuth as well.