Fatal Error on main forum page

[Renae]

I am seeing this error on my page, I have no idea what it means. I looked through this php file, but I did not see what is causing the error.

Help please.

[B]Fatal error[/B]:  Allowed memory size of 33554432 bytes exhausted (tried to allocate 5767123 bytes) in [B]/home/militas1/public_html/forum/includes/class_core.php[/B] on line [B]371[/B]

[Steve Machol]

Your PHP does not have enough memory allocated to it to complete this operation. Ask your host to increase the 'memory_limit' variable in php.ini to at least 64M.

To temporarily up your limits edit your includes/config.php file and add these lines right under the <?php line:

ini_set('memory_limit', 64 * 1024 * 1024);