FortiClient VPN request access to system keys - admin password ?

Hello,
I have an issue which I cannot find a solution to. I installed FortiClient VPN, created connection, imported certificate, and allowed disk access. After entering credentials for VPN I get prompt "Fortitray application ask to use keychain type "System"" - there I need to enter admin credetials. If I enter admin creds 5+times it will connect.
How to allow it permanently?
Certificate is trusted, Fortitray is allowed everywhere I could find.

Macbook Air 2020
macOS Tahoe 26.1
Forticlient VPN 7.4.3.6667

Thank you for your help