Got decayed even though I've been playing forever.

I was Gold 4 16 Lp then lost a game, afterwards it said I was demoted to Gold 5. I then went back to the home screen and saw this:

http://gyazo.com/d304dbbf52d970ab75515d3c9723da2b

How can I be decayed when I've been playing everyday for a long time? Also, on my lolking it says I'm Gold 4 0 LP and it shows my match history, if you see I've been playing daily. Lolking ;

http://www.lolking.net/summoner/na/27729152

Is this a visual bug or did I actually get decayed?

Edit: Actually my lolking says my last game was 2 days ago. I played yesterday and have played like 5 games today before this happened, so is this another bug? I can post my match history later for proof, I am currently in champ select.