local player = game.Players.LocalPlayer
local mouse = player:GetMouse()
local Animate
local Humaniod = player.Character:FindFirstChild("Humaniod")
mouse.KeyDown:Connect(function(Key)
if Key == "c" then
local Animation = Instance.new("Animation",player.Character)
Animation.AnimationId = "rbxassetid://4934205080"
Animate = Humaniod:LoadAnimation(Animation)
Animation:Play()
end
end)
mouse.KeyUp:Connect(function(Key)
if Key == "c" then
Animate:Stop()
end
end)
The output says: Workspace.EpicLLBro.LocalScript:10: attempt to index nil with 'LoadAnimation'

2 comments
You spelled Humanoid wrong on line 4. It should be "player.Character:FindFirstChild("Humanoid"). You can keep your variable name spelled wrong if you'd like.
Thx!