Update app.py

app.py

@@ -294,4 +294,4 @@ def handle_message(message):
 
 if __name__ == '__main__':
     #socketio.run(Sock, host="0.0.0.0", port=7860)
-    Sock.run(host="0.0.0.0", port=7860)
+    app.run(host="0.0.0.0", port=7860)