Boosters disappeared when I connected to facebook

Disconnect it just to see if they reappear, since you're progress is saved to FB it won't do any harm and you can always reconnect it.

I'm a recent convert to not connecting to Facebook for these games, due to internet connection problems one day I was playing.  You can make an account with King instead, King finds you friends, which is great because none of my real life friends play or would even be inclined to.  Whereas I've always been into console and computer gaming and iOS games seem like the logical tangent for me.  Even if your Facebook friends do play, chances are you might have two or three friends at most, but King gives you many many more than this.  The first time I logged in I had over 200 messages waiting, friends who wanted to give me lives, friends asking for lives and help.  The King login saves your progress too. I too lost some boosters in the transition, but I think it was worth it, I can play a lot longer before running out of lives because my friends help me out.