It sounds like this issue could be specific to the Prestige theme, in which case the best next steps are to contact the developers of the theme and have them look into it.
You can do this by visiting their contact us page here.
Make sure to provide as many details as you can so they can get a good idea of the issue and investigate it for you as soon as possible.
Since you shared your storefront link in the post, I went and had a look around at your store - you have done some really great work here! Your logo is beautiful, and works perfectly for a jewellery business.
While browsing the store, I noticed that you have a very interesting blog section, but no About us page to tell the customers a little bit more about your business.
When it comes to selling jewellery, the customers will often look for a business that has something unique to offer, for example the personality behind the store where they purchase from. Getting a bit of backstory for a jewellery store can add some romance to their purchase, which is really sought after in this industry, - and I think it would go great with your overall brand, Heart of Gold.