Hi, I am quite new to this and hve stumbled on a problem.

When I am in Administrator role I can go thru a full complete order with paypal, no problem. But when I try when i am logged in as a user or not signed up as a user I get this message when I try to "add to cart":
Fatal error: Unsupported operand types in /home/domains/sweaquatics.com/html/includes/common.inc on line 1436

I also wonder how to put text in terms and conditions?

What do I need to do?