"Please check your internet connection!" That reload button is not working! ~snip~
I have faced the same problem like you. OP provided Betja.com link in his post while the title says Betja.io. So I tried to visit BetJA.io domain, then the webpage loaded without any issue. Maybe he have two domain of his website. One of them working perfectly and there is issue with Betja.com domain.How old this bookmaker is? Most of the major cryptocurrency is already available at the site to play with. I checked it and found that they are really providing slight higher odds than other sports betting site.
