If you are receiving the message "Your cart is empty" when trying to add to cart...
(It wont let you add items to cart)
This problem is not related to the website, it is an issue with the browsers.
You have two choices:
1. Send us an email with what you are trying to order. We will also need your name, address and phone number. We will create the order for you and send it to you to complete payment, as if you had been able to add the items yourself.
2. Open a private browser session using your browser. Follow the guidelines for your browser to open the private browser session. This has been proven to work for people who have experienced this issue.
Click on the File menu and select New Private Window — alternately, you can hold down the command and shift keys and type N.
Click on the File menu and select New Incognito Window — alternately, you can hold down the command and shift keys and type N.
Click on the Gear icon, also known as the Action or Tools menu, located in the upper right-hand corner of your browser window.
When the drop-down menu appears, hover your cursor over the Safety option. A sub-menu should now appear. Click on the option labeled InPrivate Browsing.
Please note that you can utilize the following keyboard shortcut in lieu of this menu item: CTRL + SHIFT + P.
To enable private browsing in Firefox, click on the hamburger icon at the top right and then select New Private Window. You can also just use the CTRL + SHIFT + P keyboard shortcut.
In Opera, you used to be able to browse privately in a tab or in a new window. However, the feature now works like all the other browsers where private browsing loads in a new window. All tabs opened in that window will be private. In Opera, you click on the Menu bottom at the top left of the browser window.
For more details see this link...