I have read your documentation Gitbook site and there isn't even a mention of UTM tracking.
A YouTube channel with video tutorials showing how UTM parameters are tracked, might be useful

It is one thing tracking the path the visitor takes through your website and the bounce rate, but what is needed is to track exactly where traffic has come from.

You are probably losing sales, as people are not prepared to take a risk on a product, with zero reviews and a top tier price of $2k