Can't find Analytics data from the past year
I'm having trouble finding traffic data on my Analytics account from the past year. I've this account for more than 4 years and I can see the data until the end of November 2015. But from that date there is no traffic at all. this information is very important to me. Can some explain what happened? Is there a way restore it?
this is my website: http://www.houston-carpet-cleaners.com/