There is nothimg wrong with your device.
Prob 1: we cannot delete a favorite Tunein station, and I even reported this to Echo support in the early days of Alexa
Obviously, still not fixed.
Prob 2: What the heck is Blues Rock? Is it an Amazon playlist, or tunein station, or what?
If it is a playlist you have to ask for Blues Rock playlist most likely.
If it is a tunein station you need to request the station by its call letters or combo of both pr nickname, example Play Jazz 91 on tunein.
And, relax about all this, too.