Fix undefined message.author

index.js

@@ -207,6 +207,7 @@ client.on('messageDelete', message => {
 });
 
 client.on('messageUpdate', (originalMessage, editedMessage) => {
+  if (editedMessage.author) {
     if (editedMessage.author.bot) {
       return;
     }
@@ -219,6 +220,7 @@ client.on('messageUpdate', (originalMessage, editedMessage) => {
       .setTimestamp()
       .setColor('006699');
     client.guilds.cache.get("826506878976000030").channels.cache.get("826876551756513314").send(editEmbed).catch(console.error);
+  }
 });
 
 client.on('channelCreate', channel => {