http://hwhcrystals.com.au/shop.checkout

Error 8: Trying to get property of non-object
file:/home/hwhcrystals/public_html/application/helpers/promotion_helper.php
line: 337

Debug Backtrace

#1 /application/modules/estore/helpers/estore_common_helper.php:199 -- get_shipping_fee(NULL, 24.5, 1.007)
#2 /application/modules/project_default/shop/scripts/checkout.php:39 -- 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:104 -- 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')