No post mode specified

Hello. My forum is [url=ttrroleplay.forumotion.com]here[/url] and something's up with it. The forum would not allow members on mobile devices (iPads, iPods specifically) to log in. I fixed that, but now it will not let them post, instead displaying the message "No post mode specified" when they attempt to submit a post.

According to the Interwebz this has something to do with connection. Help?

Well, yea this has something to do with connection problem. Did they've tried to reconnect to the internet connection? And have they tried to re-post? Cause i often have this problem cause my internet connection are too damn slow.

All i did was just disconnect my netbook from internet connection the reconnect and then i just re-send my earlier post. Works fine for me..