in my quests I was suppose to upgrade my farm..i started the up-grade.. a few hours later I look in quests and my farm grade quest was gone..i completed my 4 farm upgrade  my next quest for building upgrade should have been to upgrade forge.. but that quest does not show in my quest list.. it has been more than 3 days that this happen.. I have reloaded the game several time but the quest problem has not corrected