Pokemon platinum help please

[WarZone]

Now this happened once before and i stopped playing all together. o idecided to retry and start a new game. im playing on the no$gba emulator. now after the 7th badge i did all the galactic hq and stuff and got to the top of mount coronet and battles the two galactic commanders with my buddy. now the problem. once my buddy leave and cyrus uses the red chain and he says that stuff about dalgia and palkia then the text screen goes away and the screen moves forward likei guessing its supposed to but once it starts the sreen just stays there and the music gets glitchy and thats it. i cant get past it thats as far as i can get. its very frustrating.

anybody else have this problem or know how i can fix it. id really perfer to not have to keep restarting my game just to get stuck here again.

 

[hi fi wi fi]

Maby you can try getting a different rom for this game or possibly try using a walkthrough walls cheat ( you can find this easily on supercheats.com) then just walk around the walls of that part to skip the spot where your game begins to glitch.