MyBB Hacks

i am trying to use {$forumurl?} in my template
when i try to save it gives following error
A potential security issue was found in the template. Please review your changes or contact the MyBB Group for support.

How can i use the forumurl in template?

Try

i am using that plugin as following
<a href="{$forumurl?}search={Threadfield here}">Search Threadfield</a>
and it gives the error i mentioned above

{$forumurl?} was never valid in templates - it was a special construct which worked in threadfields, which is deprecated for {$forumurl_q}

oh ok i will try to use the code given by you
thanks for help