Since I upgraded to Version 0.57.18 Chromium some extensions, such as 1Password, stop working after a short period of time and give the following error message ‘Version 0.57.18 Chromium’.
I reinstalled Brave but the same error re-occurs. I am running Mac OS btw.
It seems that the problem was caused by location where Brave was installed on the HD; the location of Brave and the extensions was different. Everything seems to work now.