I was able to log into Tidal but [not] Qobuz.
It was showing no account. My login information has not changed in over 5 years. I use an iPad to manage Roon and my collection.
The Qobuz app on the iPad shows all my account info and collection. I also followed Rebeka’s restart suggestion and rebooted the system.
I still get this message.
Error verifying account Please check account details (Unauthorized)