Hello,
Thank you very much for choosing our theme and for contacting us.
1. You need to decide what Wishlist you are going to use: Basel built-in or YITh Wishlist plugin. If you want to use the plugin, disable the Wishlist feature in the Theme Settings > Shop > Wishlist. If you want to use built-in feature, deactivate and delete the plugin.
2. Please add this code to the Theme Settings > Custom CSS > Global:
body .single-product-content .col-sm-6.product-images {
display: none;
}
If the code does not work, please provide product page URL, it may be as you could apply another image width.
Best Regards