Pokemon Platinum Problem (HelPP..)

Hello guys..
i got a little problem here..
when i open the "pal pad", the screen just black but the song still play like nothing happen..
did anyone know what's the problem??

Flashcart or emulator? More details.

im using r4

Update your firmware if you haven't.

im using v1.18
and im already format the card againthats nothing wrong with the other, just the pal pad.. T_T
whats wrong here??