game.Players.LocalPlayer only works for LocalScripts and is a reference to the current client running the script but the server isn’t a client and thus the variable LocalPlayer there is nil(because the server simply can’t guess which one of the currently connected players you try to reference). If you want to use the player variable on the server(which I assume you do because you change leaderstats values) it depends on the script and the use case. For your use case since this is a script inside a player tool you can reference the player as script.Parent.Parent which will work if the player hasn’t equipped the tool at the moment(because when they equip it the tool is inside their character) but to ensure you fetch it successfully you can use the following function:
function GetPlayerFromTool(tool: Tool): Player?
--if the tool is unequipped it will be inside the player backpack
if tool.Parent:IsA("Backpack") then
return tool.Parent.Parent
--if the tool is equipped it will be inside the player character
elseif tool.Parent:IsA("Model") then
return tool.Parent
--the tool is at a random location that isn't related to a player
else
return nil
end
end
local player = GetPlayerFromTool(script.Parent)
--also remove the local plr line and replace all "plr" with "player"
local player = nil
local Enabled = true
local Animation = nil
local char = script.parent.parent or script.parent
local HRP = char:WaitForChild(“HumanoidRootPart”)
script.Parent.Equipped:Connect(function()
player = game.Players:GetPlayerFromCharacter(script.Parent.Parent)
Animation = script.Parent.Parent.Humanoid:LoadAnimation(script.Animation)
HRP.Parent.Humanoid.JumpHeight = 0
HRP.Parent.Humanoid.WalkSpeed = 0
wait(2)
HRP.Parent.Humanoid.JumpHeight = 7.2
HRP.Parent.Humanoid.WalkSpeed = 16
end)
script.Parent.Activated:Connect(function()
if Enabled == true then
Animation:Play()
player.leaderstats.Strength.Value += script.Parent.Strength.Value
Enabled = false
wait(script.Parent.Cooldown.Value)
Enabled = true
end
end)
So it is saying that plr is nil. LocalPlayer only works in a local script so if this is a server script change it to script.parent.parent as that would be the player’s character