Problem with player character

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1

Hi i have a telekinesis power and i have a problem with player character

When i print the character it’s print my name but when i put Character.Head it’s give me error message
" ServerScriptService.Telekinesis:11: attempt to perform arithmetic (sub) on nil and Vector3 - Server"

here is my script:

local RE = game:GetService("ReplicatedStorage")
local TelekinesisEvent = RE.TelekinesisMouseMove 

local BodyPosition = Instance.new("BodyPosition")

local stepped
local RunService = game:GetService("RunService")

TelekinesisEvent.OnServerEvent:Connect(function(client, Character, mouse, target)
	stepped = RunService.Heartbeat:Connect(function()
		BodyPosition.Position = client.Character.Head.Position + (mouse - client.Character.Head.Position).Unit * 20
	end)
end)
2

The only problem i can see here is “mouse” argument is nil, if it was a problem with character then it would give you a completely different error