Hi  adi_mapcreator, 
I referred to both Bing Aerial Imagery and Esri World Imagery at this location -7.2918489, 107.8682335 and there is no visible path connectivity. When we refer to Bing imagery we can clearly see connectivity towards the southern side of the track highway i.e -7.2930542, 107.8671116 in the form of a field path. This will rightly solve the error for Fix Isolated Pedestrians network challenge. Let me know if you have further questions. Happy Mapping!