I've joined game this week and tried to solve quests as they have been shown in Quests list. Now I achieved level no. 14 and I can't solve quest "Upgrade any building." I Upgraded one of the pinewood foresters to level two, but quest is shown as incompleted and I don't have any marbles and hardwood planks to upgrade any other building.
Can i upgrade any building in other way or I have to reset game and start again?
Thank you for any help,
Rudidlo.