Help I Can’t Create A New Topic

I don’t even know if this will work, but I’m trying anyways. I’ve been trying to make a new post for my Critique My Chumhandles series, but it won’t let me post, like at all. It keeps throwing up “Unidentified Errors” when I do. I’ve tried shortening the post, and going to places with stronger internet connection, but even at my house, it won’t work. What do I do? Is there a character limit I should be aware of?