How come my player typeinbox to kick not working?

first you type in player username and then reason it kicks

local Frame = script.Parent
local Enter = Frame.Enter
local UH = Frame.UsernameHandler
local RH = Frame.ReasonHandler

local function getPlayer(String)
    for i, Player in pairs(game.Players:GetPlayers()) do
        if string.sub(string.lower(Player.Name), 2, string.len(String)) == string.lower(String) then
            return Player
        end
    end
end
Enter.MouseButton1Click:Connect(function()
	local Player = getPlayer(UH.Text)
	if Player then
		print("yo")
	end
	
	Player:Kick("Kick for: "..RH.Text)
end)

Error:   19:38:29.578 - Players.raid6n.PlayerGui.ScreenGui.Frame.LocalScript:23: attempt to index local 'Player' (a nil value)

something looks wrong at line 9 though