The following explanation was taken from the ThemeStockyard Support Forum, in response to the topic: Outdated woocommerce templates


There's good news and bad news... we'll start with the bad.

Bad news:

I'm sorry to say that we no longer support the Addison theme and it was only designed to be compatible with WooCommerce 2.x :( In fact, we were just debating whether we should remove the theme from Themeforest altogether.

Good news:

If you can access your website via FTP, fixing the issues with WooCommerce is fairly simple, so I'll walk you through it (even though we technically no longer support the theme).

First, login to your site via FTP and delete the following directories:

Next, delete the following files:

And finally, add the following CSS code to the "Custom CSS" field (Theme Options > General Settings):

.woocommerce .woocommerce-info:before { background-color: #1e85be; }
.woocommerce-checkout .checkout .col-2 h3#ship-to-different-address { float: none !important; position: relative; }
.woocommerce-checkout .checkout .col-2 h3#ship-to-different-address label { padding-left: 0px !important; font-weight: normal; }
.woocommerce-checkout .checkout .col-2 h3#ship-to-different-address input { position: absolute; top: 5px; right: 0px; }
body.single-product table.variations td.label { display: none; }
.sc-loop-product-bottom .price del,
.sc-loop-product-bottom .price ins { display: inline !important; }

You’ll probably continue to see the “outdated files” notification, but everything should look and function as it should :)

That's it!