Brave suddenly stopped accumulating BAT tokens

Description of the issue:
I have been using Brave, rewards has worked well for weeks. A few days ago, the pending rewards froze at 0.470 BAT. If I see a wallpaper ad, the amount goes up 0.005 BAT but then if I close then reopen the browser it has returned to the previous amount.

Steps to Reproduce (add as many as necessary): 1. 2. 3.
Open Brave Browser, see a wallpaper ad, wait, close browser and reopen.

Actual Result (gifs and screenshots are welcome!):
Pending BAT has decreased by 0.005 returned to original balance which it has been stuck at for days.

Notification ads no longer show.

Expected result:
See notification ads, BAT tokens accumulate.

Reproduces how often:
100%

Operating System and Brave Version(See the About Brave page in the main menu):
Ubuntu 20.04.2 LTS

Version 1.21.76 Chromium: 89.0.4389.86 (Official Build) (64-bit)

Additional Information:
I recently have started using Monero-wallet-gui and bitcoin-core on the machine, so maybe that’s related.

Resolved I think…
I enabled and set-up crypto wallets within the browser.
I reinstalled turned off brave rewards, then turned it back on.
Ads have started showing again and rewards are accumulating as normal.