Thank you for posting your problem on here. Have you attempted to replace the batteries in order to figure out if that will fix the problem? Another tip is to take out the batteries for a full minute, then put them back in. If that still doesnt work some time deleting a few items might also create a solution since the memory might be too full and not work at all.

If those still do not fix the problem you can always contact the manufacturer directly for any software updates that might fix this problem as well.

Let us know how things go!