I was playing lufia on the lameboy emulator and i couldn't save. I thought it was strange and i restarted. When i turned it on again i couldn't see my files - it was asking for some .dat file. Then i tried to acces the micro sd card with the computer. There were no files on the card, but i can't transfer any files to it either.

Is there any chance i can get my files again, all my savegames are on it >_<