Our website www.sinister.co.nz has been cloned https://www.sinister-boutique.com/. Any advice on how to fix and how to prevent it happening in the future?
Thanks 
Use Shopify’s DMCA tools to help take down the site (assuming it’s also on Shopify). There isn’t really a way of preventing it, it’s a malicious act being taken by a person. If there was a way to stop that then there would be a lot more peace in this world.