Error: Undefined constant "VENUES_PER_PAGE"

#0 /home/kliccoil/domains/gayout.com/app/controllers/VenueCategoryController.php(33): VenueCategoryController::getPaginatedVenues()
#1 /home/kliccoil/domains/gayout.com/public_html/index.php(511): VenueCategoryController::show()
#2 {main}