Account balance error cannot be fixed after disabling and enabling Internet connection

[luixxiul]

Describe the issue you encountered: Account balance error cannot be fixed after disabling and enabling the Internet connection. You have to restart the browser to get the error fixed.

Expected behavior: The Internet connection should be detected automatically, and the error should be fixed as soon as possible.

• Platform (Win7, 8, 10? macOS? Linux distro?): macOS

• Brave Version: master branch

• Steps to reproduce:

  1. Close the browser
  2. Disable your Internet connection
  3. Open the browser
  4. Make sure the account balance error happens on about:preferences#payments
  5. Enable your Internet connection
  6. The error on about:preferences#payments should be fixed as soon as possible

• Screenshot if needed:

• Any related issues:

@ayumi @mrose17