Brave is saying
Your scheduled monthly payment for Auto-Contribute and monthly tips could not be completed due to insufficient funds. We’ll try again in 30 days.
My Auto-Contribute is 30 BAT, and I have 47 BAT.
Monthly Payment 30.0BAT
Next contribution date 12/9/2018
Version 0.57.18 Chromium: 71.0.3578.80 (Official Build) (64-bit)
I am using Windows