Acekard 2i not play some games

I have acekard 2i running akaio 1.8.7 and for some reason it wont let me play pokemon white or black.
I originally started playing black a couple weeks after the release after I beat it, I got white and was happy.
2 weeks after this black stopped working completely. it would just stop at a white screen when I tried to load it.after that white still worked until just recently. Is it a matter of bugged roms or software glitches?
If so how can I fix it?thanks in advanced.

why are you running 1.8.7 when 1.8.8 is available?Make a back up of your microSD card on your desktop and format the microSD card using the panasonicSD formatter to see if this helps

This seems to have fixed the problem. I can play the game now.
Thank you

Glad u got it sorted :)

Hehe, i am late, but yeah, funguy is correct, always keep up with the latest firmware.