Weapon Vendor Crash Issue

[Semajnad]

I'm trying to create this weapon vending machine, and it works ( kinda ). I'm using it along-side Dark RP. It doesn't crash if I'm not using Dark RP, however obviously can't test if the rest of it works, as I need money :P

I don't understand why Dark RP would make it crash when I spawn a weapon with the entity placed.

The issue is, I can use the Q menu to spawn Half Life 2 weapons, however as soon as I place down my entity and try and spawn a HL2 weapon, the server crashes. I've attached my code and the error log from the moment I place it to the crash. EDIT: I've just checked this with other weapons such as FAS2.0 and the same happens. As soon as I spawn one it crashes.

init.lua

//DUMPSTER ENTITY INIT.LUA

AddCSLuaFile( "cl_init.lua" ) -- Make sure clientside
AddCSLuaFile( "shared.lua" )  -- and shared scripts are sent.
 
include('shared.lua')

function ENT:Initialize()

	util.AddNetworkString( "sendPurchasedWeapon" )
	util.AddNetworkString( "sendWeapons" )
	
	sgn_vendor_weapons = { weapon_p2282 = 1000, weapon_pumpshotgun2 = 2000, weapon_mac102 = 3000}
	
	self:SetModel( "models/props_interiors/VendingMachineSoda01a.mdl" )
	self:PhysicsInit( SOLID_VPHYSICS )
	self:SetMoveType( MOVETYPE_VPHYSICS )
	self:SetSolid( SOLIlD_VPHYSICS )
    
    local phys = self:GetPhysicsObject()
	if (phys:IsValid()) then
		phys:Wake()
	end
	
end

function ENT:Use( activator, caller )

    local menuOpen = false
	
    if activator:IsPlayer() && menuOpen == false then 
		menuOpen = true
		print("Player has activated item")
		
		net.Start( "sendWeapons" )
			net.WriteTable( sgn_vendor_weapons )
		net.Send( activator )
		menuOpen = false
    else
    end
	
end

net.Receive( "sendPurchasedWeapon", function( len, pl )
	
	weapon = net.ReadString()
	price = net.ReadString()
	
	newPrice = 0 - tonumber(price)
	
	print( weapon )
	print( newPrice )
	print( tostring(pl) )
	
	if pl:canAfford( tonumber(price) ) then
		pl:PrintMessage( HUD_PRINTTALK, "I'm new here." )
		pl:addMoney( newPrice )
		pl:Give( "weapon_p2282" )
	else
		print("You can not afford this")
	end
	

end )

cl_init.lua

// Title Font

include('shared.lua')

surface.CreateFont( "title", {
	font = "Arial", 
	size = 20, 
	weight = 500, 
	blursize = 0, 
	scanlines = 0, 
	antialias = true,
} )

net.Receive( "sendWeapons", function()
	print("received")
	
	local sgn_vendor_weapons = net.ReadTable()
	
	for k, v in pairs(sgn_vendor_weapons) do
		print(tostring(k) .. ", " .. tostring(v))
	end
	
	DrawHomeScreen( sgn_vendor_weapons )
end )

function DrawHomeScreen( sgn_vendor_weapons )

    // Background Colour
    local vendorScreen = vgui.Create( "DPanel" );
    vendorScreen:SetSize( 400, 400);
    vendorScreen:SetPos( ( ScrW() / 2 ) - 150, ( ScrH() / 2 ) - 150 );
    vendorScreen:MakePopup( );
    vendorScreen:PostMessage( "SetTitle", "text", "This is the title" );
    vendorScreen.Paint = function( self,width,height ) surface.SetDrawColor( Color( 30, 30, 30, homeScreenBackgroundAlpha ) ) surface.DrawRect( 0 , 0, ScrW(), ScrH() ) end

	// Variables that change for height
	local ListXPos = 25
	local listYPos = 75
	
	local title = vgui.Create( "DLabel", vendorScreen )
	title:SetFont( "title" )
	title:SetPos( 25, 25 )
	title:SetText( "Weapon Vendor" )
	title:SetColor(Color(236, 240, 241, 255))
	title:SetSize( 300, 25 )
	
	for k, v in pairs( sgn_vendor_weapons ) do
	
		local weaponName = vgui.Create( "DLabel", vendorScreen )
		weaponName:SetPos( ListXPos, listYPos )
		weaponName:SetText( k )
		weaponName:SetColor(Color(236, 240, 241, 255))
		weaponName:SetSize( 40, 25 );
		
		
		local priceList = vgui.Create( "DLabel", vendorScreen )
		priceList:SetPos( ListXPos + 100, listYPos )
		priceList:SetText( v )
		priceList:SetColor(Color(236, 240, 241, 255))

		local purchaseButton = vgui.Create( "DButton", vendorScreen )
		purchaseButton:SetPos( ListXPos + 150, listYPos )
		purchaseButton:SetText( "Purchase" )
		purchaseButton:SetColor(Color(236, 240, 241, 255))		
		purchaseButton.DoClick = function()
		
			vendorScreen:Remove()
			
			net.Start( "sendPurchasedWeapon" )
				net.WriteString( tostring(k) )
				net.WriteString( tostring(v) )				
			net.SendToServer()
			
		end
		
		listYPos = listYPos + 25
		
	end
end

function ENT:Draw()
  self:DrawModel()
end

shared.lua

//DUMPSTER ENTITY SHARED.LUA

ENT.Type = "anim"
ENT.Base = "base_gmodentity"
 
ENT.PrintName= "Weapon Vender"
ENT.Author= "Semajnad"
ENT.Contact= ""
ENT.Purpose= "Spawns"
ENT.Instructions= "Press 'E'"
ENT.Spawnable = true
ENT.AdminSpawnable = false
ENT.RenderGroup = RENDERGROUP_BOTH

error.log

SGN  | Semajnad<STEAM_0:1:22686651> spawned sent weapon_vendor
ServerLog: SGN  | Semajnad (STEAM_0:1:22686651) Gave himself a weapon_357
Giving SGN  | Semajnad a weapon_357
!Get!Get

^^ That's what the error.log says, but this is what happens in console when the server crashes:

SGN  | Semajnad<STEAM_0:1:22686651> spawned sent weapon_vendor
ServerLog: SGN  | Semajnad (STEAM_0:1:22686651) Gave himself a weapon_357
Giving SGN  | Semajnad a weapon_357
!Get!Get
!Get
dlopen failed trying to load:
/opt/server-files/source/linux32/libsteam.so
with error:
/opt/server-files/source/linux32/libsteam.so: cannot open shared object file: No such file or directory
dlopen failed trying to load:
/opt/server-files/source/linux32/libsteam.so
with error:
/opt/server-files/source/linux32/libsteam.so: cannot open shared object file: No such file or directory
dlopen failed trying to load:
/opt/server-files/source/linux32/libsteam.so
with error:
/opt/server-files/source/linux32/libsteam.so: cannot open shared object file: No such file or directory
Segmentation fault (core dumped)
Add "-debug" to the ./srcds_run command line to generate a debug.log to help with solving this problem
Sun Nov  2 12:51:47 GMT 2014: Server restart in 10 seconds