Can not Verify my Uphold Account again

Hello,
my tablet was logged out from uphold, I don’t know why. But it was connected once.
Now there are 4,5 BAT in my wallet. I can not transfer them to Uphold. If I try to authorize my tablet again noting happens.
I press on Login in uphold, enter my credetials. Then it opens the page “chrome://rewards” and thats it.

What can I do to login snd transfer my BAT to uphold?

Brave Version: 1.33.106, Chronium 96.0.4664.110
OS: Andriod 11 Build/RP1A.200720.012

Hello,

can I provied some more information? Where can I look to check, if an error occurs?
It was a long time to collect those bat. Don’t want to loose them.

Thanks a lot.