Excalibur Phantom Force Electronic Chess Set "board" Questions

I can't remember how to play chinses checkers. I have the ''very old board and all the marbles. My mind is a blank and I played it as a child....... Many years ago Step 1 Select at least one set of 10

...MT01R keeps coming up. I can't find any details in the manual. None of the pieces are moving on the board. Do you know what this means? I only purchased this set today and I'm thinking it is an error ...