When I open the codeplug, the following pops up:

After discovering this, I want to delete everything from the call list and start from scratch. I want to try my best to not have to redo the entire codeplug.
When I go to delete some items from the MDC call list, I get the following error:

When I try to save the codeplug the following pops up:

I found something odd in the call list I have never seen before. Does it have anything to do with the error I'm getting?

Has anyone stumbled upon something like this?