My account(s) keep logging me out...

I have two accounts. The first one is the one I first came up with, and it was working fine until a week 또는 two ago. It kept logging me out, and everytime I wanted to 코멘트 on something, I had to sign in again.

So I made a new account, thinking my first one didn't work 또는 something. The 초 one worked, but now, it's logging me out too! Not as much as the first one, but it still logs me out!