Kontakt 4 not loading library's anymore

Hi All
I have this problem when i try to load older compositions with cubase 8.5.
Kontakt 4 want load library’s and it stay empty.
I make thoses compositions in 2010-11
probably with cubase 7.
I already try to reinstall kontakt 4 but the problem persist.
I think the problem is cubase no ,
Any ideas to resolve this prob ?

I tried to reinstall and use cubase 7, but it’s the same problem.