Why does this script stop all together when it hits anything else other than me or a test dummy?

I'm making a script so when you press q, your character does an animation and a death bubble appears around him. If the bubble collides with another player's bubble or any other object that isn't anchored (Other than the drooling zombies i'm testing it out on), it stops the death script and won't kill the people anymore. Here is the code, it is a local script inside my tool:

local tool = script.Parent

local health = false




local debounce = false

local character = game:GetService('Players').LocalPlayer
local player = character.Character or character.CharacterAdded:wait()

tool.Equipped:connect(function(mouse)
    mouse.KeyDown:connect(function(key)
        if key == "q" and debounce == false then
    debounce = true
    print("ForceField")
    local ForceField = Instance.new("Part", player)
    ForceField.BrickColor = BrickColor.new("Deep blue")
    ForceField.Transparency = 0.7
    ForceField.CanCollide = false
    ForceField.Anchored = true
    ForceField.Shape = Enum.PartType.Ball
    ForceField.Size = Vector3.new(25,25,25)
    ForceField.BottomSurface = Enum.SurfaceType.Smooth
    ForceField.TopSurface = Enum.SurfaceType.Smooth

    ForceField.CFrame = CFrame.new(player.Torso.Position + Vector3.new(0,0,0))

    ForceField.Parent = game.Workspace

    ForceField.Touched:connect(function(hit)
        local humanoid = hit.Parent:findFirstChild("Humanoid")
        if not hit:IsDescendantOf(player) and health == false then
            health = true
            humanoid.Health = humanoid.Health -3
            print ("DEATH TO THE HOOOOMANNSSSS")
            health = false
        else
            print("Hi Me ;)")
        end
    end)
    wait(2)
    ForceField:remove()
    debounce = false
    end
end)
end)

If I hit anything that bascially doesn't have a"humanoid.Health" value, then it stops printing ("DEATH TO THE HOOOOMANNSSSS") and idk why ;-;, please help.