Can someone plz explain (Unable to cast Instance to float) and how to fix it ?

I am making a combat script and am trying to get a number-value from ServerStorage, which will be the damage done to the player.

The reason why the number-value is in ServerStorage , is because the value gets updated when you add a point in strength -- I did this to prevent any exploiters from being able to adjust the value.

local strength = game.ServerStorage.Strenght.Value

--- for i,v in pairs(game.Workspace:GetChildren()) do
		local m = (v:IsA("Model") and v) or nil
		if m and m:FindFirstChild("Enemy") and m ~= character then
			if (character.HumanoidRootPart.Position - m.HumanoidRootPart.Position).Magnitude <= 5 then
				print("humanoid nearby")
 
				  local sound = Instance.new("Sound")
				    sound.SoundId = "rbxassetid://131237241"
				    sound.Parent = Player.Character.HumanoidRootPart ---HERE
				    sound:Play()
				    game.Debris:AddItem(sound,1)
 
 
				    local sound2 = Instance.new("Sound")
				    sound2.SoundId = "rbxassetid://131237241"
				    sound2.Parent = m.HumanoidRootPart
				    sound2:Play()
				    game.Debris:AddItem(sound2,1)
 
					local hiteffect = replicatedStorage:WaitForChild("HitEffect"):Clone()
					hiteffect.CanCollide = false
					hiteffect.Anchored = true
					hiteffect.CFrame = m.HumanoidRootPart.CFrame 
					hiteffect.Parent = workspace
					game.Debris:AddItem(hiteffect,0.4)
					local hit = Instance.new("BoolValue",m)
					hit.Name = "Hit"
					game.Debris:AddItem(hit,0.7)
					m.Enemy:TakeDamage(strength)  **here is the problem **
					spawn(function()
						m.Enemy.WalkSpeed = 1
						m.Enemy.JumpPower = 1
						wait(1)
						m.Enemy.WalkSpeed = 16
						m.Enemy.JumpPower = 50