There’s a lot of things that might be going on, but we can’t go through any of the troubleshooting right now because nobody is able to connect to Uphold right now. When you get a chance, go read everything at PSA: Unsupported Region
That said, you can also feel free to submit a Support Ticket in case there’s anything that Brave can find ahead of time though, that way it’s ready when able to connect again.