I already sent a ticket about this issue which is:
8545959

In that ticket I says that my farmland cannot be completed no matter how many time I refresh,type of computer and clear cache.This problem make that farmland always show countdown and never want to complete no matter what I do and strangely only farmland affected and this has been happening to all my city.

I even used acceleration item but the system keep on showing it;s under processing.I hope the team can solve this problem. Picture of it:
http://i.imgur.com/YI5m8.jpg

First my 2 hero and now this..what;s next *sigh*