A General Script Error Occurred Error: The input is NULL

[Cal]

Hi

I'm getting the above error when I hit the view cart button.

Any help we be greatly apprciated.

The site is at:

http://www.scottishstickcraft.co.uk/acatalog

Cheers

Callum

[Tim Weaver]

The link for your View cart button is missing the ?ACTION=SHOWCART