:GetModel() on Server?

[DarkDragonL]

Entity/GetModel The page on the wiki says this works on both Client and Server, but I'm having an error.

Very simple at the moment

hook.Add( "OnEntityCreated", "ddlSetHealthNoConsole", function( child );

if child:IsNPC() then;
local cClass = child:GetClass()
local cModel = child:GetModel()
print("cModel: "..cModel)
end;

end )

I plan to revising the health of Citizens based on what their model is; refugee, rebel, or regular citizen.
I placed semicolons in the code I pasted on the wiki because without them it was smashing lines together without whitespace. Is this because I'm using Chrome?

I'm testing everything in sandbox right now, because I like having access to the menu to find models easily, and not need to use the console to give myself the weapons I make, and so on.

Any way, how can I figure this out if Entity/GetModel is printing this to the console:

[ERROR] addons/myaddon/lua/autorun/ddl_npc_health_manager.lua:21: attempt to concatenate local 'cModel' (a nil value)
  1. v - addons/myaddon/lua/autorun/ddl_npc_health_manager.lua:21
   2. unknown - lua/includes/modules/hook.lua:84
    3. Create - [C]:-1
     4. InternalSpawnNPC - gamemodes/sandbox/gamemode/commands.lua:351
      5. Spawn_NPC - gamemodes/sandbox/gamemode/commands.lua:479
       6. unknown - gamemodes/sandbox/gamemode/commands.lua:509
        7. unknown - lua/includes/modules/concommand.lua:54
^ That's all blue.

It works fine on Client but clearly not on Server.

Another note, this is why I loved the old "Questions(problems) that don't need their own thread" thread. This seems like such a simple/small error to create an entire new thread for.

[SweptThrone]

"Invalid NPCs passed through this hook are used by the engine to precache things like models and sounds, so always check their validity with IsValid."
Source: GM/OnEntityCreated

[DarkDragonL]

Like this, then? (again, semicolons dont really exist in my code. I dont even know how to properly use them tbh)

if child:IsNPC() && IsValid(child) then;
local cClass = child:GetClass()
local cModel = child:GetModel()
print("cModel: "..cModel)
end