Never encounter similar situation since Betfury is working fine at me end, but seeing that there are few of you guys experiencing this error maybe best to contact the support and tell them about this issue so that they maybe could investigate on why this issue occur to some of their gamblers.
But try to use other browser or device guys to see if you can access Betfury.
BTW guys maybe you can get some idea on the discussion happened in this site that can help you. https://community.cloudflare.com/t/cloudflare-prevents-me-from-accessing-thousands-of-websites-and-servers/634539
Thanks, checked out the cloudflare forum and they mainly advice to not use any adblockers as that could potentially cause problems with cloudflare; I always use adblock plus as there are way too many advertisements elsewhere but will check the Brave browser that btcltcdigger proposed. I used that browser before but stopped using it awhile ago but will give it another shot if it would cause less issues.