Import of new titles does not work

Titles of an album appeared 2 times in Audirvana Library.
In Audirvana, I deleted all titles of this album in order to catalog again, but now, when i refresh the whole folder containing this album, and other albums, the album i have deleted is not imported.
The files of the album exist in the folder (in Finder).

How may i import the album ?

I have solved my problem as follows

Move the folder to another location
Stop and Launch Audirvana
Refresh folder in Audirvana
Stop Audirvana
Move the folder to the initial location
Launch Audirvana
Refresh folder
The album appears in Library