This past weekend, my car's instrament panel lit up and would not shift out of the gear it was in. I also noticed the button for the wing was flashing. So, I knew it was electical. I checked the battery and one of the covers was missing and it was caroded like crazy. I cleaned it (not all that great) and it was fine for two days and it did it again. So, I bought some cleaner and tryed to get it off, but didn't have a wire bruch. Needless to say, it happened again this morning and now I am car-less.

So you guys have any idea or similar situations of this happening? What do i need to do

Anything will help. Thanks!