Why leaderstats aren't working on online?

local Humanoid = script.Parent.Enemy
function PwntX_X() 
local tag = Humanoid:findFirstChild("creator") 
    if tag ~= nil then 
        if tag.Value ~= nil then 
local Leaderstats = tag.Value:findFirstChild("leaderstats") 
            if Leaderstats ~= nil then 
Leaderstats.Kills.Value = Leaderstats.Kills.Value + 1
wait(10)
script:remove()
            end 
        end 
    end 
end 
Humanoid.Died:connect(PwntX_X)