fix ctx

app.py

@@ -55,7 +55,7 @@ async def on_message(message):
             try:
                 await user.send(f"xp_data: {xp_data}")
             except discord.HTTPException:
-                await ctx.send("Failed to send a DM.")            
+                await user.send("Failed to send a DM.")            
             
             await bot.process_commands(message)
     except Exception as e: