What does this mean?

I just a made a dj entry and it didn't show but not only that when I logged in this message popped up.

It said that my ticket may have expired, whats that about?

You should check the little box that says: "Remember me" or when you're not doing anything on the site for a while, you'll log out. Always copy paste what you're writing in your DJ before clicking post.

thanks matte87