Profile: lennilg

I belive the OP is talking about an issue caused by the same jQuery error. I notice JQuery error when browsing the cart.

The specified value "{{cartItem.quantity}}" is not a valid number. The value must match to the following regular expression: -?(\d+|\d+\.\d+|\.\d+)([eE][-+]?\d+)?

It's culture relateret, only shows when the browser language is not en_US.

I found the same error on other websites, running onepagecheckout. I found the error on the demo site as well: http://demos.nop-templates.com/order/checkout?demo=realonepagecheckout&utm_source=nopcommerce&utm_medium=website&utm_content=nop+one+page+checkout+plugin&utm_campaign=nopcommerce+extensions