No exposure, not enough revenue and customers. That will surely make their business out. Starting up casinos can't cater the cost if they have no plan.
I'm not very much particular for this dice site and just turned to see this as I surf. The post was just by April 2020 so I assume that it was recently created yet, they've failed.
Putting up a casino business is gamble, even if you have all the resources necessary to make the business successful, it still doesn't guarantee a success. For this one, this site was already offline, it's alright as long as there are not victims of scam.
If you have the resources, there's no problem as you can try it with a period of time and you don't have to think of the budget problem. But it's right, there is no guaranteed success even if you have all the budget and resources but at least, you have all the means to start and have a dry-run with the enough funds you have. Needless to say, this casino didn't made themselves to any of it whether they had the budget or not, still they have failed.