Error message when trying to post on forum, please help

[teephe]

I got this error when trying to post

 

Where can i change this description?

Editor & BB Code Manager (d.parentNode.getAttribute is not a function)

[xenvn]

@teephe
Change this:
Options -> Message -> Maximum message length

 

[teephe]

@teephe
Change this:
Options -> Message -> Maximum message length

My max message lenth was 10,000 characters and i used just 750, i posted an article and upload an image, that's when i get the error, so i had to make the post without the image