What arguments should I match to make the function work?

-- Variables
local player = game.Players.LocalPlayer
local mouse = player:GetMouse()
local code = require(game.ReplicatedStorage.DataSource.EnumType).clientRemoteEvent.DamageMonster
local unit = (function()
    for i,v in pairs(workspace.PlaceHero:GetChildren()) do
        if v.Name:find("Valdor") then
            return v.Name
        end
    end
end)()

mouse.KeyDown:connect(function(key)
    if key == "q" then
        if mouse.Target then

     for i,v in pairs(workspace.Monsters:GetChildren()) do
        game.ReplicatedStorage.RemoteEvent["RemoteEvent_Notice"]:FireServer(code, {unit,{v}})
    end
    wait(1)
        end
    end
end)

What if I want to change the damage to coins? Why can't I get coins even though the function works without errors

How to change the code correctly to receive coins?

https://media.discordapp.net/attachments/928790139122094130/928790292415537223/07-01-2022_021900.jpg