Sometimes traveling geocachers will take awhile to log a travel bug. In this case, it has not been in the cache for some time.
Some newbie cachers have undoubtedly picked up the travel bug without understanding how to log it out of the cache. I'm hopeful that they will drop it in another cache and a cacher will "grab" it and log it in there. In the meantime, I'm marking it missing from this cache but I wish you the best of luck.