Error 8: Trying to get property of non-object
file:/home/hwhcrystals/public_html/application/helpers/promotion_helper.php
line: 333
#1 /application/modules/estore/helpers/estore_common_helper.php:193 -- get_shipping_fee(NULL, 24.5, 1.007) #2 /application/modules/project_default/shop/scripts/checkout.php:29 -- calculate_cart() #3-- checkout->load() #4 /architecture/Web/Signal.php:114 -- call_user_func_array(array(2), array(0)) #5 /architecture/Web/WebControl.php:200 -- Signal->raiseSignal('OnLoad') #6 -- WebControl->run() #7 /architecture/Web/Signal.php:114 -- call_user_func_array(array(2), array(0)) #8 /architecture/Web/WebControl.php:205 -- Signal->raiseSignal('OnRun') #9 -- WebControl->run() #10 /architecture/Web/Signal.php:114 -- call_user_func_array(array(2), array(0)) #11 /architecture/Web/WebControl.php:222 -- Signal->raiseSignal('OnRun') #12 /architecture/Web/TProperty.php:40 -- WebControl->getHTML() #13 /architecture/Web/WebControl.php:253 -- TProperty->__get('HTML') #14 /architecture/Web/TProperty.php:40 -- WebControl->getHTML() #15 /architecture/Web/CustomTree.php:14 -- TProperty->__get('HTML') #16 /application/controllers/App.php:112 -- CustomTree->display() #17 -- App->page('shop.checkout') #18 /system/core/CodeIgniter.php:360 -- call_user_func_array(array(2), array(1)) #19 /index.php:205 -- require_once('/system/core/CodeIgniter.php')