I had a shipbuilding guild in Venice I think and I had an admiralty there too, but then I had a storm that destroyed the shipbuilding guild but the admiralty stayed there. Since I already "leveled up" with the admiralty I can't rebuild the shipbuilders guild but now I can't make anymore units than I couold with the dockyard, the one below the shipbuilders guild? Can I fix this or is this just a bug?