Addon not working

Hi Tim I've downloaded and installed you addon, but I'm having problems with it. I've got all the information from Paypal but it does not seem to work I select pay and it processes through litecart but it does not go to Paypal for payment! My site is https://multimatebriquettemaker.com/litecart/index.php

Can you register a support ticket and I will be able to assist you?
https://www.litecart.net/en/support