check out doe snot work. 404 page not found when paypal clicked

[warmanguitars]

We have Prestashop installed in a sub directory on our server and an htaccess file to automatically direct any one entering the domain name straight onto the main page of Prestashop.

 

We have just installed the PayPal module. There is a problem when customers complete their purchase and click the Pay now with your card or Paypal button. the page goes to a 404 Page not Found here http://176.32.230.13/modules/paypal/express_checkout/payment.php which is the upper url of our server rather than going to the correct path of where the actual file is on the server.

 

I realise this is a problem due to our install being in a sub directory but, not being a programmer, not knowing what I need to modify where to get it to go to the correct path I have found in the paypal.js the bit about url: Base Dir+ ( or words to that effect ) but physically modifying the line to the actual path does nothing.

 

Any help would be greatly appreciated.

 

You can see what I mean by attempting a purchase on our website warmanguitars.co.uk

 

No errors are returned in debug mode

Edited August 1, 2014 by warmanguitars (see edit history)