Issues Editing a Thread

I'm having an issue updating the main post in my thread for the toys I'm selling.

I'm trying to update my post to list one of my toys as sold but I keep getting this error:



This if the thread link:
https://dragon-hoard.com/threads/us...ldos-masturbators-and-wereable-for-sale.7792/

I'm not sure if this is the best place to post it since I'm fairly new, but any help would be appreciated!