item enchant not work(number)

[ivory dragon]

function enchantitem(player, enchant, number) {
    world.sendMessage(`${number}`)
        const container = player.getComponent('inventory')?.container;
        const itemselect = container.getItem(player.selectedSlot);
        if (!itemselect) return player.sendMessage(`${itemselect} N'est Pas Un D'item Enchantable`)
        const ench = itemselect.getComponent('enchantable')
        ench.addEnchantment({type: `${enchant}`,level: `${number}`})
        container.setItem(player.selectedSlot,itemselect)
        player.sendMessage(`Tu Vien De Enchanter ${itemselect.typeId} avec ${enchant} Lvl : ${number}`)
}

the number gives me an error when I but like its ${number} but when I but a number its function how I could adjust it??