Error: Cannot find module 'discord.js' Please Help

Please Help I Did Everything

{
“name”: “discordeconomybot”,
“version”: “1.0.0”,
“description”: “A very simple bot with an economy system using the Discord.js API”,
“main”: “main.js”,
“scripts”: {
“start”: “node main.js”
},
“repository”: {
“type”: “git”,
“url”: “git+https://github.com/Androz2091/DiscordEconomyBot.git”
},
“author”: “Androz#2091”,
“license”: “ISC”,
“bugs”: {
“url”: “https://github.com/Androz2091/DiscordEconomyBot/issues
},
“homepage”: “https://github.com/Androz2091/DiscordEconomyBot#readme”,
“dependencies”: {
“ascii-table”: “0.0.9”,
“ms”: “^2.1.2”,
“quick.db”: “github:Androz2091/quick.db”,
“discord.js”: “^12.1.1”
}
}

here my package.json