hey, it is because when Uphold disconnected, it was showing and will continue to show Rewards wallet balance till you are able to successfully connect to Uphold/Gemini.
The error is shown because your region is not supported for rewards verification at this time. Brave is working on getting support back for Brazil and India soon. These 2 regions are their priorities right now.
More details can be found here →
Also next time, before creating a new topic, please search the forum. This topic has been discussed too many times and there’s a lot of indo available as well.