Still charging shipping on digital goods

Hi:Dani

I have tryed to update my plugins folder by overwriting my webassist/plugins folder with the webassist/plugins that is located in the install folder of the 4.0.1 zip file. When I did and tryed to add something to the cart by pushing the add to cart button. It oook me to a blank page with this text olny

Warning: require_once(../../../WA_eCart/WA_cart_coupons.php) [function.require-once]: failed to open stream: No such file or directory in /homepages/8/d*********/htdocs/itstime2shop/webassist/plugins/shopping_cart/cart_editable.php on line 16

Fatal error: require_once() [function.require]: Failed opening required '../../../WA_eCart/WA_cart_coupons.php' (include_path='.:/usr/lib/php5') in /homepages/8/d*********/htdocs/itstime2shop/webassist/plugins/shopping_cart/cart_editable.php on line 16

I starred out the numbers, Don't know if they where sensitive in nature or not, can give they to you if you need. I have also put the old webassist/plugins back file to get it back where it was, so I could sell the other stuff that is not digital.

Still not working, Let me know what you need me to send files ect. that could help.

Thank
Ron