M3 lite doesn't boot with gba games on card

Hi I've been having detection problems with my m3 lite recently. I used to be able to play gba, nds and nes through an emulator with no problem.

I just put in a new card, loaded up mario kart through the manager and I got to the m3 through my r4 and it worked. I tried putting on a gba game and when i tried the slot 2 boot through my r4 and got "Can't find NDS or GBA card in S2 Do you want to boot to NDS mode?" This is the same error I started getting with the previous card.

I used to be able to delete the unworking file and have the card work again but not anymore. GBC games aren't working and I've been formatting it everytime to get it working again.

Any ideas how to get it booting up for other files? (gbc, gba)
Should there be specific settings in the game manager? Any superior version?

thanks

You must also have a Flash Card like one at opara browser