I have a problem when checkout goes to payment page, this is an error:
Fatal error: Uncaught Error: Call to a member function getFirstname() on boolean in /home/seributestco/public_html/app/code/community/Midtrans/Snap/controllers/PaymentController.php:64 Stack trace:
#0 /home/seributestco/public_html/includes/src/__default.php(24470): Midtrans_Snap_PaymentController->redirectAction()
#1 /home/seributestco/public_html/includes/src/__default.php(28949): Mage_Core_Controller_Varien_Action->dispatch('redirect')
#2 /home/seributestco/public_html/includes/src/__default.php(28479): Mage_Core_Controller_Varien_Router_Standard->match(Object(Mage_Core_Controller_Request_Http))
#3 /home/seributestco/public_html/includes/src/__default.php(31415): Mage_Core_Controller_Varien_Front->dispatch()
#4 /home/seributestco/public_html/app/Mage.php(683): Mage_Core_Model_App->run(Array)
#5 /home/seributestco/public_html/index.php(83): Mage::run('', 'store')
#6 {main} thrown in /home/seributestco/public_html/app/code/community/Midtrans/Snap/controllers/PaymentController.php on line 64
anybody can help my problem