Can edit my thread

Hi there :)

I seem to be having a problem, I'm trying to edit one thing on my thread here:

But it doesn't seem to be letting me save my edit, it when I try to save the edit it says "Woops! Something happened and we are working on it!"

And full edit is not letting me do it was well, when I try and save my edit it takes me to that 500: Internal Server Error page.

The edit seems to be working alright on my other threads but not this one for some strange reason.

I don't know if anyone else is having this problem, but it would be great if it would be fixed.