if they cracked they should be good. You can wait a day or two for the root to come out, put it in a new paper towel (theres probably mold on your old one, just change it either way!) and make sure it's warm. Keeping a TV on and putting it on top will speed up germination with the heat. Alternatively you can put it in the ground now. It might take a while for it to come up still though. I always put the seeds in a cup of water for 24 hours, then into paper towel, it usually crack in 2 days total.