Can’t get rid of notification icon on settings tab after updating to ipadOS 18

hi everyone, I have a problem I can’t solve that is driving me crazy.

I updated my iPad Pro third generation to iPadOS 18 and I’m stuck with the settings icon with a little red notification asking me to log into one of my email users again the problem is it is an old @me.com user that is not there anymore. I tried logging in several times it keeps logging me out and locking the user then I need to unlock it and try again very annoying. I can’t remove it without the password and I can’t login without the password so I’m stuck with a little notification that’s driving me crazy any tips on how to solve this problem thanks in advance!

Alexander.