.net and Derma

[Tardpipl]

Hi guys! My name is Mike and I have alcohol depende.. uh.. sorry. Well I am making entity and I would like to open Derma when I press E (ENT:Use()) So.. I made this one.. Just look at this.. (It's a piece of code) When I press E I see Derma but I need only 1 window NOT 7 windows!. How to fix it?

init.lua
util.AddNetworkString("SendDermaS")
function ENT:Use()
    net.Start('SendDermaS')
    net.Broadcast()
end   

cl_init.lua
net.Receive("SendDermaS",function()
     local frame = vgui.Create("DFrame")
     frame:SetSize(500,200)
     frame:Center()
     frame:SetVisible(true)
     frame:MakePopup()
end)

https://files.facepunch.com/forum/upload/114477/fdf23249-320a-45d9-b2aa-6979a483cf99/изображение.png

[c👌de_g🎷]

Try taking a break from the alcohol and read the sticky before posting Anyway, add self:SetUseType(SIMPLE_USE) to your ENT:Initialize method.