Ok, I've tried everything and can't figure this one out. I've set up two (totally deleted one and built another) FreeFlarum sites, and after a few minutes of configuring things, when I try to create a new discussion, I get the error "Oops! Something went wrong. Please reload the page and try again."
I've tried uninstalling extensions, changing settings back to defaults, and changing the settings for tags. I still always get the error, and even though the post is being created, there's no content (just a title).
Please help!