fix(lava/cogs/events.py): updated player.update_display method to inc…

…lude sending a new message if the player's channel is available, handling AttributeError exceptions.

lava/cogs/events.py

@@ -61,9 +61,11 @@ async def on_track_end(self, event: TrackEndEvent):
         self.bot.logger.info("Received track end event for guild %s", player.guild)
 
         try:
-            await player.update_display()
+            await player.update_display(new_message=await player.message.channel.send("..."))
         except ValueError:
             pass
+        except AttributeError:
+            pass
 
     async def on_queue_end(self, event: QueueEndEvent):
         player: LavaPlayer = event.player