How do I make this script target the player?

alright so a few things to keep in mind.

1. Currently, you are not checking correctly. game.Players..playerText.. is not going to get you the player that has been typed. What you need to do is FindFirstChild or [playerText] - Let me explain why you're going to use FindFirstChild. 2. If they typed an invalid player, it will error. 3. This will not work if your game has Fe.

-- This code will not work if Fe is on!
local command = script.Parent.Parent.TypeCmd
local playertocmd = script.Parent.Parent.TypePlr
local debounce = true -- debounce is useful to prevent duplicates
script.Parent.MouseButton1Click:connect(function()
	if debounce and game.Players:FindFirstChild(playertocmd.Text) ~= nil and game.Players:FindFirstChild(playertocmd.Text).Character ~= nil then 
		-- the line above checks if the debounce is ready, if the player is in game, AND if the player's character is in workspace
		debounce = false
    	if command.Text == "fire" then
			local fire = Instance.new("Fire") -- Make a different fire every time
        	local player = game.Players:FindFirstChild(playertocmd.Text)
        	fire.Parent = player.Character.Head
        	command.Text = "Command sent!"
		elseif command.Text == "freeze" then -- Just added this to show you how to put more commands
			local player = game.Players:FindFirstChild(playertocmd.Text)
        	player.Character.Humanoid.WalkSpeed = 0
		end
		wait(1)
        command.Text = "Command"
        playertocmd.Text = "Player"
        print("command")
		debounce = true
	end
end)

There might be an error from a typo because I just did this here, but it should get the message across. I hope you found this helpful, and have a nice day