Humanoid doesn't move or jump consistantly?

It prints out the first print & second.

the pet does not have any things named except for torso and head. does not have humanoidrootpart

http://prntscr.com/gff9p7 -- This is a visual representation

    ReplicatedStorage.Events.PetFollow.OnServerEvent:connect(function(player,uniqueid)
        while true do
            wait(0.1)
            print("WORK?!?")
            game.Workspace.EZYPSystem[player.Name][uniqueid].Humanoid:MoveTo(((player.Character:WaitForChild("Torso").Position)+ Vector3.new(0.5, 0, 4)), player.Character.Torso)
            print("ok")
        end
    end)