Check out PSA: Unsupported Region
Brave has temporarily restricted many countries/regions from connecting to Gemini or Uphold. Any who had already been connected stayed as so until it disconnects, then you get the message you’re seeing when trying to connect/reconnect.
You’ll know everything that’s going on and why if you carefully read everything on that topic and everything I link you to in there as well. Though it’s temporary, we’re still most likely looking at months before regions get added again.