The game doesn’t open when exported to windows. The game just loads a black screen , after that the “made with gdevelop” screen, and when it finishes loading, just a white default gdevelop room without anything. There is no music, no characters, nothing.
Check with debugger.
Plus check all your events one by one looking for variables with blanks or music and sounds with blanks, some assign empty or a condition conflic. without seen your events is hard to say, try to upload some screenshots if you can.