First make your site professional, add some pages like faq and a professional homepage. Right now every visitors are striking on login page and site doesnt have any kind of content.
After you will redesign your site make professional looking ann thread for your betting platform with all the feature your platform have.
Now spend some money in advertising, provide high class support to players and try to offer good affiliate commision.
We have all this stuff it for security reason that you need a log in to go on the site if you would like to join please send me a pm to activate you and you can see
Crypto gambling sites will allow people to see their site even before they log in into their account. If you ask people to register first to check your site then you may lose a lot of potential traffic to your site. So first allow them to see how your site looks but you can ask them to register if they want to bet on your site.