Country boundaries and the sharding tree files

[Amon-Cyn]

In Readme.md there is following information:
Downloads the country boundaries and the sharding tree files from the respective sub-folders available here ( https://apple.ent.box.com/s/3k3wcc0lq1fhqgozxr4mdi0llf95byo3 ).
When I tried to reach that location I received following error:
"This shared file or folder link has been removed or is unavailable to you."
Are boundary files and sharding tree available in different location?