You probably have an incompatibility with another plugin…
You could try disabling other plugins to detect conflicts.
Or you could install the latest version of TheCartPress (188.8.131.52 +) because we have changed our session to minimize conflicts. The latest version of TheCartPress should resolve any conflict between plugins.
Hi. I’m having the same problem.
I do have the WP Simple Paypal shopping cart, which I need to do my checkout. I don’t want to have to pay for something I already have.
What happens if I disable the shopping cart only?
Let me know what to do to fix this problem.