I think king.com got rid of the original redball1 .swf file, I had to set the swf path to https://www.redball17levels.com/uploads/4/4/4/9/44495037/redball_17levels.swf. To do this, go to the Config tab, turn on Enable Editing, go back to the original Red Ball listing, click the pencil, scroll down all the way to the final instance of "Launch Command", and replace the link there with https://www.redball17levels.com/uploads/4/4/4/9/44495037/redball_17levels.swf/.