I am having a problem with my Ender Pro 3D not reading my SD cards

The SD cards read just fine and the files in the SD cards open just fine. The 3D printer was in storage for a little over a year because I didn’t have the room in my apt for it. Now I am in a bigger apt and I have the room for it. The 3D printer starts up, the bed starts heating up and the nolise heat’s up also . But I keep getting the following errior message of “SD init fail”. What gives with the 3D printer???