How the hell does a brand new forum with almost zero posts run out of memory?

Fatal error: Out of memory (allocated 5242880) (tried to allocate 44 bytes) in /home/wsfmz/domains/forum.warezscene.org/public_html/includes/functions.php on line 5269

Also I can't login. I tried to reset my password and got this error
Warning: mysql_query() [function.mysql-query]: Unable to save result set in [path]/includes/class_core.php on line 408

Now my password is half reset but no verification email. How is a brand new site so full of errors?

Your better off taking it offline until you've all the errors fixed.