if you are on a PC try removing your browser data. if you are on a phone/tablet try deleting the app and then download the latest app. there are other things you can try ... http://www.screenshotabe.com/thingsToTry.php
many players have had this problem. sometimes it starts working by itself after several days. recently a few players have had success by deleting the browser data from chrome. there are other things you can try ... http://www.screenshotabe.com/thingsToTry.php