Pokemon black, black screen when entering wonder album. Please Help fix.

So i was using some Wonder Card AR codes for my Pokemon Black Version and they were working fine but unfortunately I ran into a problem with another Wonder Card code. I used it and then checked for the wonder card in my wonder card album and all of a sudden the screen turned black. I can still hear the music playing, it's just that the screen is black and I can't exit out so I can no longer see my wonder cards. I'm not playing an emulator, I'm playing a real game cart. So when I look for codes on google for help I can't find any because they all are about fixing emulators with their black screen. The rest of my game works, it's the wonder card album I can't access anymore. Please help me someone. I want to be able to see my wonder cards. Is there an AR code that will help me fix this? If there is, could someone please tell me what it is? Or does anyone know if it's safe to use the black screen fix emulator codes on my real game cart and it will fix it?

TrainerBZ