MyBB Community Forums

Hello, I cant post on my forum when Im using google chrome or mozilla firefox with Internet Explorer all is going easily and I dont have problems, but When I try to send a PM or post a new thread I get this error:

Please correct the following errors before continuing:
You did not enter a message to be sent. Please enter a message.

Please can someone help me out ? I get this error just on firefox and chrome !

forum URL + test user account required to check the issue ...

http://www.pornzillus.com/index.php
User: bond007
Password: abc123456

^ hmm., not sure that your forum can get official support from this community ... (Support Eligibility policy)

Oh thats bad for me :/
Is there any other place where I can search for mybb help ?
Because I have ads running and new users register every hour, but they go away after few minutes because they cant post !