The Drop Down menu did not work on theme supply

[Molybdenum1425]

I can not choose whatever to add into the shopping cart. The drop down menu doesn't work anymore. The site is weststartexas.com. 

Thanks 

[Maz]

Hi, @Molybdenum1425!

From what I can see the dropdown menus are working on my side, but the 'add to cart' function is missing for most of your products.

Have you recently made any changes to your themes' code, either by adding a third party app or editing the code directly? It might be worth trying to preview your store in a different theme so that we can rule out any theme related issues. You can learn how to preview your theme here.

Can you let me know what theme you're using?