Update app.py

app.py

@@ -368,7 +368,7 @@ async def on_message(message):
                 return 0
     with open(f"{guild_name}.guild", "r") as f:
         o = f.read()
-    if (str(message.channel.id) in o.split("\n")) or (guild_name == "Direct"):
+    if not (str(message.channel.id) in o.split("\n")) or (guild_name == "Direct"):
         return 0
     async with msgchannel.typing():
         for user in message.mentions: