attempt to call a table value?

so in my last question i said this was my last part of the titan shifting thing im doing. so there were 2 peces of lightings that i did and the last one was supposed to get bigger and bigger. and the loop will break after it gets deleted(idk if the loop will stop after it is deleted so if you could also fix that it would be nice)

game.ReplicatedStorage.titanshifted.OnServerEvent:Connect(function(player)
    wait(3)
    local shift1 = game.ReplicatedStorage.shift1:Clone()
    local shift2 = game.ReplicatedStorage.shift2:Clone()
    shift1.Parent = game.Workspace:FindFirstChild(player.name).HumanoidRootPart
    shift1.Position = shift1.Parent.Position
    wait(1)
    game.Workspace:FindFirstChild(player.name).HumanoidRootPart:WaitForChild("shift1"):Remove()
    shift2.Parent = game.Workspace:FindFirstChild(player.name).HumanoidRootPart
    shift2.Position = shift2.Parent.Position
    wait(3)
    game.Workspace:FindFirstChild(player.name).HumanoidRootPart:WaitForChild("shift2"):Remove()
end)
game.ReplicatedStorage.titanshifted.OnServerEvent:Connect(function(player)
        wait(1)
        while true do
            wait(0.2)
            game.Workspace:FindFirstChild(player.name).HumanoidRootPart:WaitForChild("shift2").Size = game.Workspace:FindFirstChild(player.name).HumanoidRootPart:WaitForChild("shift2") + Vector3(1,1,1)
            if 

    end
end)