Worldpay Business Gateway Not Working

-- HikaShop version -- : HikaShop Essential: 2.6.0
-- Joomla version -- : 3.4.5
-- PHP version -- : PHP Version 5.4.41
-- Browser(s) name and version -- : Chrome
-- Error-message(debug-mod must be tuned on) -- :

Secure Payment Page
Sorry, there was a problem processing your payment:
The information sent from the merchant's site is invalid or incomplete. Please send the following information to the merchant:
The transaction cannot be processed for one or more of the following reasons:

The installation ID field is blank or contains invalid characters.
A different submission protocol is required. A more secure submission may be required.
The installation number is invalid.
Server information 28/Oct/2015 16:01:38 Server ID ukdc1-pz-cen07 (WPReq-25675)

HELP!!!

I have gone through the entire set up of Worldpay Business Gateway Payment, but still can not get it to work, when I click on finish on the checkout page and it goes to worldpay secure -test I get the following error;

I have set up worldpay with the correct callbacks etc, but can not get it to work and the customer is losing a bit of patience , can anyone help me out please

Thanks
Gerald