pokemon pearl in no$gba emulator

i play pokemon pearl at no.gba emulator. and at the peak of mountain coronet, after i battle with mars and jupiter,the screen turn to palkia and it is stuck and don't move. but the sound still continue as only the screen stuck, i try to restart it but every time also stuck at there, what is the problem and how to solve it?

upppppppppp yểm trợ b