Virtual memory card issues

[Doza89]

So I’ve been looking everywhere and can’t find the answer to the issue I’m having with virtual memory cards. I know I can use the save state method without a memory card but wish to use the memory card. So I’ve tried multiple times to create a new memory card. I made sure that my slot A is inputed to memory card. But every time I go into a game it says, “Invalid device is inserted into slot A” I am using macO with the M1 chip if that helps.