Been asked to post here. You will see the weird code on all product pages. This was running on WooCom 2.6, i then upgraded to 2.6.1 and the same problem exists.
It seems that not all files were replaced when you update the theme. Check for example this file on your web-site basel/woocommerce/single-product/add-to-cart/variable-swatches.php and compare it to the one from archive downloaded from themeforest.
In case they are equal we will need your FTP access so we could take a closer look at your files and try to find the problem.
Great, but we recommend you to replace all files and folders from latest update to prevent any other issues caused by wrong files from previous version.