I found a similar topic in this forum which got closed without answer.
Not sure if that matters, but I’m using Manjaro Linux and Brave 0.22.810 (same problem with latest firefox).
What I did was trying to change the preferred withdrawal currency from EUR to BTC. That is where I first noticed that error message. At that point my Brave Payments dashboard still displayed that is was connected to my uphold wallet. But still the error message kept appearing and the preferred currency would not change. I thought it might solve the problem if I unlink it and relink it. I unlinked from within uphold and just removed Brave Payments from the authorized applications. From then, I can’t relink to my uphold wallet and everything looks like in the screenshot.
When trying to relink, I get sent to uphold to authorize Brave Payments. After clicking authorize, I need to authenticate with Authy (2FA app) and then I get sent back to what you see on the screenie.
Will I still be able to receive BAT from visitors of my site?
Thank you a lot for your time. Any help would be greatly appreciated.