You may not use the chat shop

I'm trying to setup a cofig where you can only sell scrap. You can't buy or sell anything else, besides scrap. Every time I do /shop in chat it says "You may not use the chat shop. You might need to find the NPC Shops." I see on there is a way to only have the command if you set something to "0", though I don't know what it is. Thank you, for anyone that helps. Sorry, I'm new to this plugin!

{
"Message - Bought": "You've successfully bought {0}x {1}",
"Message - Error - Building Blocked": "You cannot shop while in building blocked area.",
"Message - Error - Command Multiple": "Can't buy multiple",
"Message - Error - Cooldown": "This item has a cooldown of {0} seconds.",
"Message - Error - Cooldown Amount": "This item has a cooldown and amount is limited to 1.",
"Message - Error - Invetory Full": "Your inventory is full.",
"Message - Error - Invetory Slots": "Your inventory needs {0} free slots.",
"Message - Error - Item Doesnt Exist": "WARNING: The item you are trying to buy doesn't seem to exist",
"Message - Error - Item Not Set Properly": "WARNING: The admin didn't set this item properly! (item)",
"Message - Error - Item Not Valid": "WARNING: It seems like it's not a valid item",
"Message - Error - No Action In Shop": "You are not allowed to {0} in this shop",
"Message - Error - No Action Item": "You are not allowed to {0} this item here",
"Message - Error - No Buy Price": "WARNING: No buy price was given by the admin, you can't buy this item",
"Message - Error - No Chat Shop": "You may not use the chat shop. You might need to find the NPC Shops.",
"Message - Error - No Econonomics": "Couldn't get informations out of Economics. Is it installed?",
"Message - Error - No NPC": "The NPC owning this shop was not found around you",
"Message - Error - No Sell Price": "WARNING: No sell price was given by the admin, you can't sell this item",
"Message - Error - No Shop": "This shop doesn't seem to exist.",
"Message - Error - Not Enough Items": "You don't have enough of this item.",
"Message - Error - Not Enough Money": "You need {0} coins to buy {1} of {2}",
"Message - Error - Not Nothing": "You cannot buy nothing of this item.",
"Message - Error - Redeem Kit": "WARNING: There was an error while giving you this kit",
"Message - Sold": "You've successfully sold {0}x {1}",
"Shop - Balance": false,
"Shop - Shop Categories": {
"Scrap": {
"buy": "0",
"img": "",
"item": "scrap",
"sell": "1"
},
},
"Shop - Shop Icon Url": "",
"Shop - Shop List": {
"chat": {
"buy": [
"scrap"
],
"description": "You currently have {0} coins to spend in this shop",
"name": "Ammo",
"sell": [
"scrap"
]
},
},
"ShowCategories": false
}

In response to CyphixHL ():
I'm trying to setup a cofig where you can only sell scrap. You can't buy or sell anything else, besi...
its probably a permissions thing you should download permissions manager
make sure that "true" is set at the bottom where it says "gategories"
Almost the last line...
I had this issue today and narrowed it down to the "commands" shop. Was confused because it used to be "chat". Try adding this back:

"commands": {
"buy": [
"scrap"
],
"description": "You currently have {0} coins to spend in the commands shop",
"name": "Commands",
"sell": [
"scrap"
]
}