Trying to add simple light to my shop doesn't work.

Tried with the item itself and tried using the command option.

This is the message i get reloading the Shop

"Simple Light": {
			"buy": "10000",
			"img": "https://i.pinimg.com/originals/04/29/31/04293147d43b9f48da44894a462da8fd.png",
			"cmd": "inventory.giveto $player.id simplelight 1",
			"cooldown": "0",
			"sell": "0"
		},

[GUI Shop] Failed to load ShopCategory: Simple Light Error: Specified cast is not valid.

"cmd": ["cmd1", "cmd2", "cmd3"],​