Storage problem at SD and now the switch option is missing

[Douggizi]

First of all I was having problems to download playlist at the SD storage doing all the recommend things like format and clean my SD and reinstalling the app but nothing worked 

The app just say that the whole playlist is ready and all the green buttons are there but when I go offline it just don't play, isn't there. I also tried to download at the internal storage and them transfer to the internal storage but when the process finish the app just crash and don't even open 

Now the option to switch where to storage the music is gone