1054 Error - Coupon Code Zones - HELP!!!

When I try to run the Coupon Admin I get this error:

1054 Unknown column 'coupon_zone_restriction' in 'field list'

Sure enough, this column doesn't exist in the zc_coupons table.

The question is...why not?

If someone can tell me the specifics (type, length, etc.) I can add it, but I'm really wondering why it isn't there already - ZC is otherwise great for me.

I'm using Zen Cart 1.3.5.

Many thanks!

The zone-restrictions feature for coupons was added in Zen Cart v1.3.6.

Since you're using v1.3.5, I'm not surprised that you'd be having problems if you're using code snippets from a newer version.

Have you installed an addon that changed the /admin/coupon_admin.php file but isn't compatible with your version of Zen Cart?