Qobuz isn't working. Logged in but not playing. Radio works. What's going on

[BlackJack]

That confirms that you did not take the time to read through the thread linked above or you would have stumbled upon the response from support:

Qobuz suddenly not loading [appears to be a Qobuz outage]

We are seeing some intermittent problems with Qobuz which are impacting Roon as well as the Qobuz app (so most definitely a problem on their end). The service disruption appears to be somewhat random in nature and is only impacting certain geographies. This is most likely an issue with the content delivery network that Qobuz uses.