The HelloMiners store can be accessed via the “Store” button in the centre of the top panel on forums. Unfortunately, when clicking this link, Safari (web browser) notifies the user of suspicious activity coming from the link. When accessing the store via the browser search function, it’s still using the old design and is generally suspicious.
This will discourage users from buying products like nicknames and premium. And if these warnings from my browser are true, it may harm the bank accounts of people regularly being charged for HM premium.
So my suggestion is to fix the site or create a new one entirely. Simple as that.