What is wrong with the script, It's to do with Died:Connect(function()?

"Zombie" is the zombies in the game which is in workspace. "RealMoney" is made when game starts so is in the player and isn't in leaderstats . "CoinBoost" is made by pets it's a variable saved of how much extra coins pets give you. This Script is for when the Zombie dies and money is given plus the value the coin boost has.

local Zombie = game.Workspace.Zombie
local char = script.Parent.Parent
local plr = game.Players:GetPlayerFromCharacter(char)
local RealMoney = plr:FindFirstChild("RealMoney")
local boost = plr:FindFirstChild("CoinBoost")
            
Zombie:WaitForChild("Zombie").Died:Connect(function()
	plr.RealMoney.Value = plr.RealMoney.Value + 100 + boost.Value
	end)
	

The .Died event is for Humanoids, Please do more research before asking next time.