What happens is that if I send a command like the avatar command or some moderation command to the bot via private message, it causes an error because it doesn't get the properties it requires.

I am using discord js v12

CodePudding user response：

Use discord.js's message.inGuild() method.

if (!message.inGuild()) return;

or for an error message:

if (!message.inGuild()) return message.channel.send("Use this command in a guild!");