Can't play Daily Sudoku, Can't get the numbers to move

I play daily suduko all the time, I was working for the badge a couple of weeks ago and all of a sudden, it won't move the numbers. I have 2 computers and it's the same with both of them, It's not a speed problem with my computers and my other games are working, I can''t finigh the christmad badge if I can't play the game