Bot not working?

[Herobr1ne]

Hey i tryed to setting up the bot, but when í try to use the help command, this error appear
`/root/PteroControl-main/node_modules/discord.js/src/structures/MessageEmbed.js:450
.flat(2)
^

TypeError: fields.flat is not a function
at Function.normalizeFields (/root/PteroControl-main/node_modules/discord.js/src/structures/MessageEmbed.js:450:8)
at MessageEmbed.addFields (/root/PteroControl-main/node_modules/discord.js/src/structures/MessageEmbed.js:266:42)
at MessageEmbed.addField (/root/PteroControl-main/node_modules/discord.js/src/structures/MessageEmbed.js:257:17)
at Object.exports.run (/root/PteroControl-main/commands/help.js:8:6)
at module.exports (/root/PteroControl-main/events/message.js:12:7)
at Client.emit (events.js:198:13)
at MessageCreateAction.handle (/root/PteroControl-main/node_modules/discord.js/src/client/actions/MessageCreate.js:31:14)
at Object.module.exports [as MESSAGE_CREATE] (/root/PteroControl-main/node_modules/discord.js/src/client/websocket/handlers/MESSAGE_CREATE.js:4:32)
at WebSocketManager.handlePacket (/root/PteroControl-main/node_modules/discord.js/src/client/websocket/WebSocketManager.js:384:31)
at WebSocketShard.onPacket (/root/PteroControl-main/node_modules/discord.js/src/client/websocket/WebSocketShard.js:444:22)
`