Hi! I have followed these steps (with the latest version of ADE) and get rid of the authorization message.
STEP 1: Selected "library" -> pressed ctlr + shift + D -> chose "erase authorization" and validated this choice.
STEP 2: selected help -> "authorize computer" and wrote my ID etc.
Now it runs how before the mistake happened
Thank you for your help. Turns out there was an additional problem with my computer.