Update app.py

app.py

@@ -254,8 +254,8 @@ async def top_gradio(ctx, channel_id):
 async def top_gradio_threads(ctx, parent_id):
     if ctx.author.id == 811235357663297546:    
         message_counts = {}
-
-        all_channels = await guild.fetch_channels()
+        
+        all_channels = await ctx.guild.fetch_channels()
         filtered_threads = [channel for channel in all_channels if isinstance(channel, discord.Thread) and channel.parent_id == parent_id]
 
         for thread in filtered_threads: