Error in streams refresh: TypeError: fields.flat is not a function

[YTNico71]

[StreamActivity] Update current activity: watching YTNico7171. [TwitchMonitor] Error in streams refresh: TypeError: fields.flat is not a function at Function.normalizeFields (/home/ytnico7171/timbot-master/node_modules/discord.js/src/structures/MessageEmbed.js:450:8) at MessageEmbed.addFields (/home/ytnico7171/timbot-master/node_modules/discord.js/src/structures/MessageEmbed.js:266:42) at MessageEmbed.addField (/home/ytnico7171/timbot-master/node_modules/discord.js/src/structures/MessageEmbed.js:257:17) at Function.createForStream (/home/ytnico7171/timbot-master/live-embed.js:29:16) at TwitchMonitor.onChannelLiveUpdate (/home/ytnico7171/timbot-master/index.js:492:32) at Function.handleChannelLiveUpdate (/home/ytnico7171/timbot-master/twitch-monitor.js:220:21) at Function.handleStreamList (/home/ytnico7171/timbot-master/twitch-monitor.js:182:23) at TwitchApi.fetchStreams.then (/home/ytnico7171/timbot-master/twitch-monitor.js:95:24) at process._tickCallback (internal/process/next_tick.js:68:7)

i need help please

[roydejong]

Duplicate of #26.

This most likely means you are using an older version of Node.js, try updating to v12.
See: https://stackoverflow.com/a/61034427/1410310