Script not changing Health?

local Players = Game:GetService("Players")
print("STARTING")
Players.PlayerAdded:connect(function(plr) 
    local health = plr:WaitForChild("leaderstats"):WaitForChild("Health") 
    plr.CharacterAdded:connect(function(char) 
    if health.Value < 100 then
        health.Value = 100
    end
        char:WaitForChild("Humanoid").MaxHealth = health.Value 
        print("Provided health on join")
    end)
    health.Changed:connect(function(h) 
        if plr.Character then 
            plr.Character:FindFirstChild("Humanoid").MaxHealth = h 
            print("Provided health on respawn")
        end
    end)
end)

This is currently placed within the ServerScriptStorage. It's currently not doing anything. Is there anything wrong with it? (The output doesn't say anything, not even the prints.)

function DataHandler(p,o,key)   
    local types = {
        IntValue = "Number";
        NumberValue = "Number";
        ObjectValue = "Instance";
        BoolValue = "Boolean";
        StringValue="String";
    }
    local t = types[o.ClassName]
    if (not t) then return end
    key = (type(key) == "string" and key or o.Name) 
    key = (#key > 0 and key or key.Name == o.Name and o.ClassName or o.Name)
    if (not p.DataReady) then                                               
        p:WaitForDataReady()                    
    end                                         
    local Save,Load = p[("Save%s"):format(t)],p[("Load%s"):format(t)]   
    o.Value = Load(p,key)   
    local lastV = o.Value
    o.Changed:connect(function(v)
        lastV = v
        Delay(1,function()      
            if (lastV ~= v) then return end
            Save(p,key,v)
        end)
    end)
end


game.Players.PlayerAdded:connect(function(player)
    local l = Instance.new("IntValue",player)
    l.Name = "leaderstats"

    local kill = Instance.new("IntValue",l)
    kill.Name = "KOs"
    DataHandler(player,kill,"Thekills")

    local death = Instance.new("IntValue",l)
    death.Name = "Wipeouts"
    DataHandler(player,death,"Thedeaths")

    local mh = Instance.new("IntValue",l)
    mh.Name = "Health"
    DataHandler(player,mh,"MaxHealths")
end)