So, here is the thing, there are multiple websites that just don’t work on Brave, the ones i know don’t work are: https://soundcloud.com (help.soundcloud.com works, for some reason) and https://twitch.tv
(there are others but i don’t remember them)
The error that appears is this one (it’s in portuguese but i think everyone here can understand)
Você não pode visitar (website name) agora, porque o site usa HSTS. Erros de rede e ataques são geralmente temporários. Esta página provavelmente funcionará mais tarde.