Error module handles errors that are thrown by the bot.
Aside from handling and logging exceptions, this module contains a small fun functionality that can make fun of the code.
When an unhandled error happens, the bot will send an announcement that an error happened to every subscribed channel.
Subscribe current channel to the meme.
Unsubscribe current chanenl from the meme messages.
List all channels of current guild that are subscribed to the meme.