You can open an issue here: https://github.com/IsraelHikingMap/VectorMap/issues

If you don't have a Github account,  you can try contacting Zstadler or HarelM: 

Zstadler: https://www.openstreetmap.org/messages/new/zstadler

HarelM: https://www.openstreetmap.org/messages/new/Harel%20M