HACS Dyson integration problem with account setup

How can I diagnose what is the problem?

I just got my Dyson PH04 Air Purifier and got it setup in the android app (with downloaded apk) with region US (I’m in Bulgaria where apparently Dyson sells products but don’t support the mobile apps…) and I tried to integrate it with the HACS integration using the account method but got this error.

The problem was something with my account in dyson, a couple password changes and a couple of hours later, it worked.