TOPIC: Can't remove sync w/JEvents

I can not remove the sync w/ JEvents. Everytime I try to do so, I get a 500 Error. Why do I want to remove the sync? Because every time I create a new event in JEvents, it automatically overwrites the title of my oldest DT Register event. UGH! I have many events I need to add to my JEvents calendar, and I can't!

Can anyone please advise on how to fix?