Redirect URL not working in Contact Bank

The URL redirect option in the Advanced Section has been set to redirect on “submit” to a payment page – https://www.artgalleryofnorthumberland.com/support-the-agn/membership/membership-payment/

Up until a few days ago, this was working, but now does not redirect. It simply returns to the page the form is on.

We are running WordPress 4.8.5, and Contact Bank 3.0.16

Any help would be greatly appreciated.

Thanks….Duane

The page I need help with: [log in to see the link]