(gLua) Derma not working. attempt to call method 'Close' (a nil value) - lua

Question

Error at function ContextClose()
And all derma menu not working
attempt to call method 'Close' (a nil value)
I've create derma menu and it worked in garrysmod\lua folder,
then I moved flies to addon floder and it stopped working.
cl_init.lua
AddCSLuaFile("pbfhud.lua")
include("pbfhud.lua")
pbfhud.lua
AddCSLuaFile()
local statBarW, statBarH = ScrW() / 400, ScrH() / 10
local barW, barH = ScrW() / 4, ScrH() / 10
local btnW, btnH = ScrW() / 4, ScrH() / 20
surface.CreateFont( "NotDermaDefault", {
font = "Arial",
extended = false,
size = 25,
weight = 500,
blursize = 0,
scanlines = 0,
antialias = true,
underline = false,
italic = false,
strikeout = false,
symbol = false,
rotary = false,
shadow = false,
additive = false,
outline = false,
} )
local function DrawInventorySlot( )
end
local function DrawBar(x, y, w, h, color, text, val, name)
local rtext = text .. ": " .. val
local tW, tH = surface.GetTextSize(rtext)
tH = tH / 2
if (name == true) then
tW = tW / 7
end
draw.RoundedBox(0, x, y, w, h, color)
draw.SimpleText(rtext, "NotDermaDefault", barW / 2 - tW / 7, barH / 2 - tH + y, Color( 255, 255, 255, 255 ), TEXT_ALIGN_CENTER, TEXT_ALIGN_TOP)
end
function ContextOpen()
gui.EnableScreenClicker( true )
menu = vgui.Create("DFrame")
menu:SetSize(ScrW(), ScrH() + 100)
menu:ShowCloseButton(false)
menu:SetTitle("")
menu:Center()
menu:SetDraggable(false)
menu:SetBackgroundBlur(true)
menu:SetMouseInputEnabled(true)
menu.Paint = function()
draw.RoundedBox(0, 0, 0, ScrW(), ScrH(), Color(0,0,0,100))
local blur = Material("pp/blurscreen")
local function blurPanel(panel, amount)
local x, y = panel:LocalToScreen(0, 0)
local scrW, scrH = ScrW(), ScrH()
surface.SetDrawColor(255, 255, 255)
surface.SetMaterial(blur)
for i = 1, 6 do
blur:SetFloat("$blur", (i / 3) * (amount or 6))
blur:Recompute()
render.UpdateScreenEffectTexture()
surface.DrawTexturedRect(x * -1, y * -1, scrW, scrH)
end
end
blurPanel(menu, 5)
draw.RoundedBox(0, 0, 0, ScrW() / 4, ScrH(), Color(0,0,0,50))
-- Stats
DrawBar(0, 0, barW, barH, Color(235, 235, 235, 140), "Имя", LocalPlayer():getDarkRPVar("rpname"), true )
DrawBar(0, statBarH, LocalPlayer():Health() * statBarW, barH, Color(255, 50, 43, 140), "Здоровье", LocalPlayer():Health(), false )
DrawBar(0, statBarH * 2, LocalPlayer():Armor() * statBarW, barH, Color(43, 128, 255, 140), "Броня", LocalPlayer():Armor(), false )
DrawBar(0, statBarH * 3, barW, barH, Color(255, 149, 43, 140), "Работа", LocalPlayer():getDarkRPVar("job"), false )
DrawBar(0, statBarH * 4, barW, barH, Color(0, 138, 11, 140), "Зарплата", LocalPlayer():getDarkRPVar("salary"), false )
-- Inventory
draw.RoundedBox(0, barW, 0, ScrW() / 1.7, ScrH(), Color(0,0,0,50))
end
-- Buttons
--fb = vgui.Create("DButton", menu)
--fb:SetSize(btnW, btnH)
--fb:SetPos(0, btnH * 12)
--fb:SetText("")
end
function ContextClose()
menu:Close()
gui.EnableScreenClicker( false )
end
hook.Add ("OnContextMenuOpen", "Context", ContextOpen)
hook.Add ("OnContextMenuClose", "Context", ContextClose)
Files location
..addons\pbf_hud\lua\autorun\client\cl_init.lua
..addons\pbf_hud\lua\autorun\client\pbfhud.lua

Answer 1

SOLVED
I used same identifiers for hooks. If you have same problem just change hook indentifier:
From:
hook.Add ("OnContextMenuOpen", "Context", ContextOpen)
hook.Add ("OnContextMenuClose", "Context", ContextClose)
To:
hook.Add ("OnContextMenuOpen", "Context_open", ContextOpen)
hook.Add ("OnContextMenuClose", "Context_close", ContextClose)