My Uphold wallet doesn’t connect with Brave Rewards

Answer to that is kind of detailed on my FAQ you can read at PSA: Current FAQ - #17 by Saoiray

Yes. You can’t even get far enough to connect to Uphold or anything without choosing a country.

Guessing you’re just connected from prior attempt on your computer? Because if both are trying to connect to Uphold, you should get the same message. It’s Uphold that is limiting your account.