Ok I manual merged nis-0.6.93.tgz into what I have in the package folder  (nis-ncc-0.6.91.tgz) by overwriting files and deleting
old verson java  .jar
and it works (so I have nis 0.6.93 and ncc 0.6.91 and mon  0.6.91 )

I strongly recomment you to always provide the full package since manual merging will be a very troublesome act for most users and you can never be sure that you did it right (overwriting the right files deleting the right ones)

It synchronized now.