If you are using map_changer_here_tomtom.zip then all maps should be in the / content / map directory.
If you are using ExternalMapChanger.zip, the maps must be in directories as shown in the picture.
Spoiler: [URL=https://www.fotosik.pl/zdjecie/9c93f8a69601d345
9c93f8a69601d345med[/URL]]