Hello bitcoinbayshop, i was taking a look to the About page and found this:
Your Payment Is Safe And Secured
You’re payments with Bitcoin Bay will always be safe and secure. We use Blockchain.com to hold all funds.
I would say is a bad idea to have all the users' funds on a web wallet. There are more secure ways to handle the customers' money, and this can break the trust of a lot of them.
This kind of EShops aren't new at all, I mean, you are using wordpres with woocommerce... I have done some of those in the past. But I would like to know what plugin you use or how do you manage the bitcoin payments?