Party Music Synthesizer only 2 prims

I have problems with your keyboard. I can't get into the song menu. It always cloes the song menu and then opens a adjust position adjust menu. Then i click DONE and the adjust window closes. Then i click on the keyboard to get the song menu and i can see it a half second but then it closes and again the position menu shows up. So i almost never can choose one of the songs. 99% it only shows the adjust menu.
The keyboard itself and the songs are great (if you manage it to get into the menu) but i cant select songs then without the menu. I asked the seller about this problem but he does not answer. Good that i bought this keyboard for just 1L$ last week as promo. I hope the seller will fix this issue and release a update.