PM2 Error: TypeError: Cannot read property 'send' of null

[chrsmlls333]

ERROR DETECTED ON KETCHUM-DOWNLOADER

AT: October 11, 2021 1:50 AM
APP: ketchum-downloader

MESSAGE

STACK TRACE

TypeError: Cannot read property 'send' of null
    at Client. (/app/src/index.js:44:23)
    at Client.emit (events.js:315:20)
    at Object.module.exports [as GUILD_CREATE] (/app/node_modules/discord.js/src/client/websocket/handlers/GUILD_CREATE.js:33:14)
    at WebSocketManager.handlePacket (/app/node_modules/discord.js/src/client/websocket/WebSocketManager.js:384:31)
    at WebSocketShard.onPacket (/app/node_modules/discord.js/src/client/websocket/WebSocketShard.js:444:22)
    at WebSocketShard.onMessage (/app/node_modules/discord.js/src/client/websocket/WebSocketShard.js:301:10)
    at WebSocket.onMessage (/app/node_modules/ws/lib/event-target.js:132:16)
    at WebSocket.emit (events.js:315:20)
    at Receiver.receiverOnMessage (/app/node_modules/ws/lib/websocket.js:825:20)
    at Receiver.emit (events.js:315:20)

CODE LINES

client.on('guildCreate', server => {
  const embed = utils.embedTemplate(client)
    .setTitle('Thanks for adding me to your server!')
    .setDescription(`I'm a downloader bot which can pull attachments and embeds into a big list to download later. \n\nFor a list of commands, send \`${prefix}help [command name]\` here or in your server!`);
>>return server.owner.send(embed);
});

client.on('message', async message => {

[chrsmlls333]

Not sending guild creation messages to guild owners