We have found a bug that is causing us serious problems. It happens at random times but when you add an item to the cart then click on the checkout button it takes you to the checkout page but sometimes for whatever reason the page will redirect to the sharperjacks.com/login.php page forcing the customer to create an account.
Sometimes even worse when the customer clicks on the checkout button it will redirect them to the sharperjacks.com/checkout_shipping.php page.
We have looked at the code but cannot understand why this bug occurs and why it happens so randomly.
You can sometimes make this redirect problem occur by clicking the refresh page button on your browser over and over until it just redirects you to either page.
We are using the browser FireFox. This is a problem we must get solved.
Any help would be very much appreciated.