When your system clock get out of sync, there is an error "Authenticating To Oidc Unknown error"
I had an issue where one user couldn't log in to Kypo. Nothing has changed on the system, and I am receiving a message "Authenticating To Oidc Unknown error". After further investigation it turns out the clock has been out by over an hour. After the system clock sync it's fine. However, I don't think the error, as per the picture, is correctly handled. Also, probably a more user-friendly message would be easier to troubleshoot.