"Health Is Not A Valid Member of Player"?

Hi, total noob to RemoteEvents here. I'm making a weapon. When the handle of the weapon is touched by somebody other than the Player who is attacking, it takes damage to the victim. I have two values, attacking and debounce. The code is inside a local script inside the tool. The RemoteEvent is in ReplicatedStorage, and the script is inside ServerScriptService.

The clip of the local script containing the :FireServer() looks like this:

function onTouch(part)
	if attacking == true and debounce == true then
		if part.Parent.Name ~= player.Name then
			local vhum = part.Parent:findFirstChild("Humanoid")
			if vhum and vhum.Health > 0 then
				game.ReplicatedStorage.RemoteEvents.TakeHealthFromWeapon:FireServer(player, vhum, damage)
				attacking = false
			end
		end
	end
end

The script looks like this:

function onTHFW(vhum, damage)
	vhum.Health = vhum.Health - damage
end

game.ReplicatedStorage.RemoteEvents.TakeHealthFromWeapon.OnServerEvent:connect(onTHFW)

When the tool is activated, I get this error from the Script:

"21:41:29.298 - Health is not a valid member of Player" ... "21:49:55.547 - Script 'ServerScriptService.Script', Line 3"

Any help is appreciated. Thanks. :} ~Loughdough