Fixed bug where bot would crash when no image could be found

commands/gi.js

@@ -37,7 +37,15 @@ module.exports = {
         msg.reply(`Please wait a second while I get a random image from online, with the subject **${image_query}**`)
 
         const image_results = await google.scrape(image_query, 200);
-        msg.channel.send(image_results[Math.floor((Math.random() * image_results.length) + 1)].url)
+        var img = image_results[Math.floor((Math.random() * image_results.length) + 1)]
+        if (img) {
+            msg.channel.send(img.url)
+            .catch(err => {
+                console.log('Error in sending URL of image: ' + err)
+            })
+        } else {
+            msg.channel.send('Sorry, could not find an image on that query.')
+        }
         return
     }
 }