Did you use UltraArc for creating the archives ?
you missed a setting... if so, then in settings.ini
Code:
//Define if you want to use UltraARC, DiskSpan or Internal compression. Only enable one of them!
;#define UltraARC Remove the ;
;#define DiskSpan
;#define Internal "G:\Assassins Creed Origins"
#define DiskSize "DVD5" ;CD / DVD5 / DVD9 / BD25 / BD50
then you'll need the archives & records.ini ( the way ultraarc arranged the archives, the archives themselves & if they were in subfolders )
you need them placed with the setup.exe created by ASIS 7.