DarkRP entities problem

[Greezy]

Alright so I'm trying to add some more printers that I found from garrysmod.org and I've done everything I've placed the files within the correct folder that it told me to and it also told me to put some lines in addentities thingy, so I place them above everything else but below the weapon shipments and above the other addentities things like drug lab, here's the code I used

AddEntity("Silver Printer", "Silver_Printer", "models/props_lab/reciever01b.mdl", 500, 2, "/buysilverprinter")
AddEntity("Gold Printer", "Gold_Printer", "models/props_c17/consolebox05a.mdl", 2000, 2, "/buygoldprinter")
AddEntity("Platinum Printer", "Platinum_Printer", "models/props_c17/consolebox03a.mdl", 5000, 2, "/buyplatinumprinter")
AddEntity("Premium Printer", "Premium_Printer", "models/props_c17/consolebox01a.mdl", 10000, 2, "/buypremiumprinter")

but when I go in game and go to the F4 menu and try to buy one of these, It's just types "/buypermiumprinter" in the chat for some reason, and the default printer that I got with DarkRP doesn't even print money, It just sits there with nothing on it but my name.

Edit: I was able to fix the problem, was pretty simple actually, but I have another problem when I shoot them they make the blowing up thing but they don't disappear
they're still there.