Passwords erased and impossible to save new ones

[elmaj]

Hi, this is my problem:

Description of the issue: all my saved passwords disappeared. Impossible to save new ones even i click “save”.
Impossible to import my csv backup -> they don’t appear after “import”

Expected result: saving new passwords & import csv

Reproduces how often: all the time

Operating System and Brave Version:
linux mint 18.3 cinnamon 64bits - Brave [Version 1.9.76 Chromium: 81.0.4044.138 (Official Build) (64-bit)]

Additional Information: nothing change after reboot.

• the popup windows for saving password is strange https://imgur.com/a/dhAC9Kx
• passwords manager work well with new profile

Thanks for help

[Tankiso]

Don’t you think virus has interrupted your system or something else like your hard drive?

[elmaj]

thanks for help.
Viruses are very rare with linux.
Hard drive, i don’t know.

[Tankiso]

Have you ever asked for assistance before?if so what did you got?