MyBB Community Forums

I have installed a forum theme named Blue Warez 2.0 on my board and now I have an error on it !

When I click on my User CP a pop up is displayed and I see an unknown language at that pop up ! Can anybody help me to solve it ! Here is a screen shot for the error !!!

[attachment=21794]

This is theme support, doesn't belong here.
Check the header templates.

Thanks for your cooperation ! Can i fix it by changing my header template ??