Fixed a NumberFormatException bug

src/main/java/netneutrality/command/music/VolumeCommand.java

@@ -54,9 +54,14 @@ public class VolumeCommand extends AbstractCommand {
 
             if (player.isConnected()) {
                 if (player.isConnectedTo(vChannel)) {
-                    int volume;
-                    volume = Integer.parseInt(args.split(" ")[0]);
+
+                    try {
+                        int volume = Integer.parseInt(args.split(" ")[0]);
                         player.setVolume(volume);
+                    } catch (NumberFormatException e) {
+                        e.printStackTrace();
+                    }
+
                 } else
                     event.getTextChannel().sendMessage("Not in your voice channel").queue();
             } else