I've made beer for a couple years, but never any hard cider until the other day. I bought 5 gallons of fresh squeezed cider on Friday, brought it home an dumped it into a primary bucket. I crushed 5 Camden tabs and stirred them in and put the kid on. About 6 hours later, I pitched an 05 dry ale yeast and a half oz of citra hops. Replaced the lid, stuck an airlock on there and left for the weekend. Today, Sunday, I returned home expecting to see the airlock bubbling, but I did not. No bubbles. Also, there is a very foul odor coming from the airlock. Thoughts?