I’ve converted this into a module for easy use and removed the use of the client events as they weren’t needed.
All you need to do is stick this in ReplicatedStorage and require it in the server.
You still need the CharacterSetupScript labeled HumanoidStarterSet in StarterCharacterScripts
Hope this helps 
Heres the source:
local Ragdoll = {}
local RunService = game:GetService("RunService")
local Players = game:GetService("Players")
local ReplicatedStorage = game:GetService("ReplicatedStorage")
if RunService:IsServer() then
local ServerStorage = game:GetService("ServerStorage")
local RagdollCounterSys = ServerStorage.RagdollCounterSys
local character = script.Parent
local lDModeOn
local diedCounted = false
function Ragdoll:ragdollMe(character)
local humanoid = character:WaitForChild("Humanoid")
humanoid.AutoRotate = false
character.HumanoidRootPart.CollisionGroup = "Body"
character.HumanoidRootPart.CanCollide = false
if RagdollCounterSys.ragdollsExisted.Value > RagdollCounterSys.ragdollsLdMax.Value then
lDModeOn = true
else
lDModeOn = false
end
if RagdollCounterSys.charactersDied.Value >= RagdollCounterSys.charactersDiedMax.Value then
task.wait(0.1 * RagdollCounterSys.charactersDied.Value) --Activate ragdoll delay, tenth x per character
end
if RagdollCounterSys.ragdollsLdEnable.Value == true and lDModeOn == true then --If LD mode is on
if character.UpperTorso then
for i,motor6d in pairs(character.UpperTorso:GetChildren()) do
if motor6d:IsA("Motor6D") then
motor6d.Parent.CollisionGroup = "Body"
motor6d.Parent.CanTouch = false
motor6d:Destroy()
end
end
end
if character.LeftFoot then
for i,motor6d in pairs(character.LeftFoot:GetChildren()) do
if motor6d:IsA("Motor6D") then
motor6d.Parent.CollisionGroup = "Body"
motor6d.Parent.CanTouch = true
motor6d:Destroy()
end
end
end
if character.RightFoot then
for i,motor6d in pairs(character.RightFoot:GetChildren()) do
if motor6d:IsA("Motor6D") then
motor6d.Parent.CollisionGroup = "Body"
motor6d.Parent.CanTouch = true
motor6d:Destroy()
end
end
end
if character.Head then
for i,motor6d in pairs(character.Head:GetChildren()) do
if motor6d:IsA("Motor6D") then --Getting motor6D joints as joints. Their parents are the parts.
motor6d.Parent.CollisionGroup = "Body"
motor6d.Parent.CanTouch = true
motor6d:Destroy()
end
end
end
else --If LD mode is off
RagdollCounterSys.ragdollsExisted.Value += 1
for i,limbs in pairs(character:GetChildren()) do
for i,motor6d in pairs(limbs:GetChildren()) do
if motor6d:IsA("Motor6D") then --Getting motor6D joints as joints. Their parents are the parts.
motor6d.Parent.CollisionGroup = "Body"
--print("Rookstun ", motor6d.Parent.CollisionGroup, " ", motor6d.Parent.CollisionGroupId, " ", motor6d.Parent)
motor6d.Parent.CanCollide = true
motor6d:Destroy()
end
end
end
end
end
function Ragdoll:activateVelocity(player)
player.character.HumanoidRootPart.AngularVelocity.Enabled = true
player.character.HumanoidRootPart.LinearVelocity.Enabled = true
if player.character:FindFirstChild("LeftUpperLeg") and player.character:FindFirstChild("RightUpperLeg") then
player.character.LeftUpperLeg.AngularVelocity.Enabled = true
player.character.RightUpperLeg.AngularVelocity.Enabled = true
end
end
function Ragdoll:deactivateVelocity(player)
player.character.HumanoidRootPart.AngularVelocity.Enabled = false
player.character.HumanoidRootPart.LinearVelocity.Enabled = false
if player.character:FindFirstChild("LeftUpperLeg") and player.character:FindFirstChild("RightUpperLeg") then
player.character.LeftUpperLeg.AngularVelocity.Enabled = false
player.character.RightUpperLeg.AngularVelocity.Enabled = false
end
end
function Ragdoll:ragdollFreeze(character, state)
if character and RagdollCounterSys.ragdollFreezeEnable.Value and state == Enum.HumanoidStateType.Dead then
local upperTorso = character:WaitForChild("UpperTorso")
repeat
local lastPos = upperTorso.Position
wait(RagdollCounterSys.ragdollFreezeTime.Value) --Time left before it checks body.
local newPos = upperTorso.Position
local distanceDiff = (lastPos - newPos).magnitude --print("DistanceDiff", distanceDiff)
until distanceDiff < 2 --Distance a body must be close from its original check to be anchored
for i,v in pairs(character:GetChildren()) do
if v:IsA("MeshPart") then
v.Anchored = true
end
end
character.HumanoidRootPart.Anchored = true
end
if RagdollCounterSys.ragdollsExisted.Value ~= 0 then
RagdollCounterSys.ragdollsExisted.Value -= 1
end
end
function Ragdoll:resyncClothes(player)
for i,v in pairs(player.character:GetChildren()) do --Hack. Refreshes and resyncs layered clothing.
if v:IsA("Accessory") then
for i2,v2 in pairs(v.Handle:GetChildren()) do
if v2:IsA("WrapLayer") then
local refWT = Instance.new("WrapTarget")
refWT.Parent = v2.Parent
refWT:Destroy()
refWT.Parent = nil
end
end
end
end
end
function Ragdoll:stopAnims(humanoid)
local AnimTrack = humanoid:GetPlayingAnimationTracks()
for i, track in pairs (AnimTrack) do
track:Stop()
end
end
function Ragdoll.DiedCountDecay()
if RagdollCounterSys.charactersDied.Value > 0 and diedCounted == false then
diedCounted = true
repeat
task.wait(RagdollCounterSys.characterDiedDecay.Value)
RagdollCounterSys.charactersDied.Value -= 1
until RagdollCounterSys.charactersDied.Value <= 0
diedCounted = false
end
end
function Ragdoll.RagdollExistedReset()
if RagdollCounterSys.ragdollsExisted.Value ~= 0 and diedCounted == false then
diedCounted = true
repeat
RagdollCounterSys.ragdollsExisted.Value -= 1
task.wait(2)
until RagdollCounterSys.ragdollsExisted.Value <= 0
task.wait(120)
diedCounted = false
end
end
RagdollCounterSys.charactersDied:GetPropertyChangedSignal("Value"):Connect(Ragdoll.DiedCountDecay)
if RagdollCounterSys.ragdollsLdEnable.Value == true then
RagdollCounterSys.ragdollsExisted:GetPropertyChangedSignal("Value"):Connect(Ragdoll.RagdollExistedReset)
end
Players.PlayerAdded:Connect(function(player)
player.CharacterAdded:Connect(function(character)
local humanoid = character:WaitForChild("Humanoid")
humanoid.Died:Connect(function()
Ragdoll:activateVelocity(player)
humanoid:UnequipTools()
for i, tool in pairs(player.Backpack:GetChildren()) do
tool:Destroy()
end
RagdollCounterSys.charactersDied.Value += 1
Ragdoll:stopAnims(humanoid)
Ragdoll:activateVelocity(player)
Ragdoll:ragdollMe(player.character)
Ragdoll:resyncClothes(player)
task.wait()
Ragdoll:deactivateVelocity(player)
Ragdoll:ragdollFreeze(player.character, humanoid:GetState())
end)
end)
end)
end
return Ragdoll