UserAgent: Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.132 Safari/537.36

Steps to reproduce the problem:
1. just restart PC
2. 
3. 

What is the expected behavior?
just not to log me out :)

What went wrong?
no bloody idea, just started to log out me

Did this work before? Yes no idea

Chrome version: 63.0.3239.132  Channel: stable
OS Version: 6.1 (Windows 7, Windows Server 2008 R2)
Flash Version: 

same acc used in many different PCs and smartphones, never had that problem