Hi,
I have the same problem and it’s a disaster for me as all my bookmarks and passwords organized over the past year are saved there.
I managed to follow the steps (Thanks 289wk!) and reinstall Brave. It is working now, but I was not as lucky as tdellaringa so my bookmarks and passwords are gone. I still have the folders I had moved to the trash though. How can I use them to get back my bookmarks and passwords. Please help! Thanks!