Hello @Catalan66, welcome to Glide and the community forum.
Unfortunate coincidence, Glide email send-outs have been down in the past few days and perhaps you were personally affected by the situation and unable to access your account.
It seemed to me the outage was related to the Send Email action, but perhaps for some reason you weren’t receiving emails to sign in to your account. Have you checked your spam folder? Have you tried signing in in incognito mode?
See here for the latest update on the matter. I hope you’ll be up and running on your new Maker plan soon.