Exception: Unable to load template file 'promo.tpl'

#0 /home/orex/public_html/classes/phpCoreLib2/Web/TemplateEngine/DSmarty.php(94): Smarty_Internal_TemplateBase->fetch('promo.tpl', NULL, NULL, NULL, false, true, false)
#1 /home/orex/public_html/classes/promo.php(33): DSmarty->fetch('promo.tpl')
#2 /home/orex/public_html/classes/_libs/DUserFormAction.php(79): DPromo->_formAction()
#3 /home/orex/public_html/classes/_libs/DUserFormAction.php(101): DUserFormAction->onScreen()
#4 /home/orex/public_html/classes/phpCoreLib2/Web/MVC/DController.php(221): DUserFormAction->run()
#5 /home/orex/public_html/classes/phpCoreLib2/Web/MVC/DController.php(112): DController->handleData()
#6 /home/orex/public_html/index.php(69): DController->displayResults()
#7 {main}