I recieve error in drupal modules

I recieve the following error when i click "modules" page on my drupal site www.kashmirtheparadise.com/ktpe

Fatal error: Allowed memory size of 18874368 bytes exhausted (tried to allocate 509067 bytes) in /hermes/web06/b2220/moo.kashmirtheparadise/ktpe/includes/database.mysql.inc on line 301

Plz help me out of this problem

_{edited by silverwing - moved to post installation forum}