No stations on TuneIn

I am sorry if this question has been asked before. I couldn’t find anything on searching this forum.
I am from German and new to this forum. I installed mopidy on my raspberry using the instructions from a magazine. I am not too familiar with the linux commands and might ask some questions which seem to be stupid to you. Please be patient with me.

I am running mopidy on a raspberry pi 3+ and I very much enjoy all the abilities it has got. I could browse through radio stations from all over the world using tuneIn. There where several subfolders in the tuneIn directory. All of a sudden these have all gone. The only subfolder which I see is called “trending” and it is empty.

on [sudo systemctl status mopidy] I get an
TuneIn API request for Browse.ashx failed: 403 Client Error: Forbidden for url:

Could that be the cause?

pip search mopidy tells me that I have got installed version 2.1.0
How do I update to the latest version?

Thank you for reading through my post.

Greatings from Hamburg / Germany

Funny. The radio stations are all back in the list.
It seems that the TuneIn service has been down. So has been solved by itself.

But I still need help on updating.

Kindest regards,