SocketException (SocketException: No route to host (OS Error: No route to host, errno = 113)

I have a Flask application running on my local machine, which I'm using as a backend for the Flutter application , but I'm getting this error

SocketException (SocketException: No route to host (OS Error: No route to host, Errno = 113)

Future pix(String BackgroundImagePath, String originalImagePath) async {
      final uri = Uri.parse('http://my desktop address:5000').replace(queryParameters: {
        'original': originalImagePath,
        'background': BackgroundImagePath,
      });
    
      final response = await http.get(uri);

• The phone is connected to my laptop through a USB
• Both phone & Laptop are on same WIFI
• I replaced localhost with my Ubuntu desktop IP address