Account credentials not working

Since yesterday evening late I am unable to connect to my Homey.
The apps on both my iPhone and Android tablet suddenly want me to log in but are no accepting my account credentials.
I can log in to the website and the forum ok, but not to my Homey. Very strange, because I’ve been using the app on my iPhone yesterday evening just fine.

Is there a password reset or something?

EDIT: Just found out that I have to use my Athom Community-credentials to log in to my Homey!

Actually it’s the same. For both you need to log in with your Athom account.