Hi there,

there's a big problem at the checkout-process after filling in billing information on my test-page. The Error-message is: Fatal error: Call to a member function validateAttributeForm() on a non-object in /srv/www/vhosts/gruppe-horch.de/httpdocs/packages/core_commerce/controllers/checkout/billing.php on line 53

The page calls:http://horch.zwei-ton.de/shop

I use the newest concrete5-version and the latest eCommerce-add-on.

What is the solution for my problem?