Update app.py

app.py

@@ -502,7 +502,7 @@ async def on_message(message):
         print(exc)
         c = client.get_channel(1202160048126840882)
         embed = discord.Embed(title="ERROR",
-                                      description=exc,
+                                      description=f"{exc}\n<@&1126289535312080966>",
                                       color=0xFF3348)
         await c.send(embed=embed)
         embed = discord.Embed(title="ERROR", color=0xFF3348)