Error while trying to connect with Uphold

Recently activated Brave Rewards on the mobile browser and set up an Uphold account, as requested. However, once I try to connect with the Uphold account, I get the error message displayed in the picture.

It’s in Portuguese, but it says that Brave had an error trying to process my request and that I should try again later. No luck so far.

I’m on Android 11, Brave 1.57.62

My verified custodian is Uphold, everything ok with them.

I’m in a supported region, in Brazil.