Dexter not available for Netflix on PS3 anymore?

I just started watching Dexter on Netflix 2 days ago. I got through the first two episodes, and then I took a break. Today, I tried to watch more Dexter, but I noticed it disappeared from my Instant Queue, so I searched it. Now it says, Dexter is "Not Available." I looked on Google, but it said nothing that could help me. What happened to Dexter? Why is it "Not Available?"