Apparently all of your replies have been landing in my junk folder. I will try the WP_DEBUG. I don’t know how exactly to use this.
I have added no new plugins since the inception of this site. I use the same setup year after year and the only thing that has changed is that I updated the events calendar and the ticketing plugin. I don’t know how to edit the php,etc which is why I have the premium support because I am not savvy enough to troubleshoot this type of problem. Now I will have to go an find a tutorial on wp debug to attempt it. In the meantime my client is furious because they can’t sell any tickets after paying for these plugins. I will reply once I have made an attempt.