Neopix Prime 2 - Amazon Prime is not working

I have the same problem as in the thread about picopix: Amazon Prime Videos wouldn't play

I’ve installed the app and I can’t watch anything on Amazon Prime because of this error pop-up.
System is updated. Should I’ve to wait for another update?

Hello,
1: have you updated to the latest firmware ?
2: have you updated the Amazon prime app from the Home screen?
thanks