DiscordJS and Linux's Screen - node.js

Question

I'm facing an issue with discordjs and i don't understand it. I run "node main.js" into a linux screen, detach it, go to sleep and when i come back, it crashed. Could you enlight me ?
# screen -r BotApex
(node:6559) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.
events.js:180
throw err; // Unhandled 'error' event
^
Error [ERR_UNHANDLED_ERROR]: Unhandled error. ([object Object])
at Client.emit (events.js:178:17)
at WebSocketConnection.onError (/root/ApexLegendsSnipeBot/node_modules/discord.js/src/client/websocket/WebSocketConnection.js:374:17)
at WebSocket.onError (/root/ApexLegendsSnipeBot/node_modules/ws/lib/event-target.js:128:16)
at WebSocket.emit (events.js:189:13)
at _receiver.cleanup (/root/ApexLegendsSnipeBot/node_modules/ws/lib/websocket.js:211:14)
at Receiver.cleanup (/root/ApexLegendsSnipeBot/node_modules/ws/lib/receiver.js:557:13)
at WebSocket.finalize (/root/ApexLegendsSnipeBot/node_modules/ws/lib/websocket.js:206:20)
at TLSSocket.emit (events.js:189:13)
at emitErrorNT (internal/streams/destroy.js:82:8)
at emitErrorAndCloseNT (internal/streams/destroy.js:50:3)

Answer 1

Looks like your bot ran into an error event while you were away. If you don't handle error events they usually make your bot crash. To prevent the bot from crashing, simply add an error listener:
client.on("error", info => {
console.log('Error event:\n' + JSON.stringify(info));
// handle the error here
});
Please keep in mind that the error event has been called for some reason and that you should handle the error afterwards.