Plz Help My Search Doesnt Work!

HELP!! When i went to go search this popped up!!

Fatal error: Allowed memory size of 8388608 bytes exhausted at (null):0 (tried to allocate 35 bytes) in /home/virtual/site284/fst/var/www/html/forums/search.php on line 946

Fatal error: Allowed memory size of 8388608 bytes exhausted at (null):0 (tried to allocate 40 bytes) in Unknown on line 0

Any kirupa website masters help plz??