So I was in a server earlier that allows you to purchase a CH47 in the GUIShop. But when I try to do it on my own server, it doesnt show up in the GUIShop. There code is listed below:

"CH47": {
"DisplayName": "CH47",
"CraftAsDisplayName": false,
"Shortname": "ch47",
"MakeBlueprint": false,
"AllowSellOfUsedItems": false,
"Condition": 100.0,
"EnableBuy": true,
"EnableSell": false,
"Image": "https://www.dropbox.com/s/r6h3ch3bmatcwji/chinook.png?dl=1",
"SellPrice": 100.0,
"BuyPrice": 500.0,
"BuyCooldown": 600,
"SellCooldown": 0,
"BuyQuantity": [],
"SellQuantity": [],
"BuyLimit": 5,
"BuyLimitResetCoolDown": 0,
"SellLimit": 0,
"SellLimitResetCoolDown": 0,
"KitName": null,
"Command": [
"spawn ch47.entity \"$player.x $player.y $player.z\""
],
"RunCommandAndCustomShopItem": true,
"GeneTypes": [],
"SkinId": 0
},

Please can someone help me out?