My chapter total was around 6 thousand characters, and is keeps being cut down to the exact same line, I’ll keep trying and I’ll upload a way to solve it

Hi, I am currently writing a story (which you are free to check out) but I have a problem, it won’t let me add a new chapter, and when I submit it, it always cuts down to the same line and says I have to write more than 2000 characters, which I had done before it shortened it.

PLEASE HELP!!