There was an error retrieving your embed.: Please double check your hosted URL in your JW Dashboard.

Hi, I uploaded in the lase year over 100 videos with your free player. All the videos are hosted on my web server. since last night I am getting the error message "There was an error retrieving your embed.: Please double check your hosted URL in your JW Dashboard." I don't have any hosted url in my jwplayer hosting and I didn't need any till now.