problem during working on it

Hell Every one... Now when i try to work on my project the following message pop up (sorry it s French language)    '' L’emplacement de stockage d’une ou de plusieurs bibliothèques n’est plus disponible. Celles-ci vont être fermées pour que vous ne perdiez pas votre travail.'' i push OK and and then the biblio shutdown it self. And?Or when I try to create a new biblio the following message shows up too-- ''Échec d’enregistrement. Le type, le format, ou la version du magasin sont inconnus. any one knows what is going on? thank you for any answer. Angelo

Where is the library stored? If it’s an external drive, what is it, and how is it formatted? Make sure you have read/write permissions for the location and its contents Also make sure FCP has Full Disk Access in Privacy System Preferences.