Error when running fixup program

when running fixup program, I get the following message:

06/13/2010 17:56:38 Informational, rebuild view needed - collection object was deleted (reading /notes/t24dbl04/b_dir/btola/wfm.nsf view note Title:‘1.1 Gestion Op\2. Year/Month/Da’)

06/13/2010 17:56:38 Informational, rebuilding view - container integrity lost (reading /notes/t24dbl04/b_dir/btola/wfm.nsf view note Title:‘1.1 Gestion Op\2. Year/Month/Da’)

Does it means there is broken indexes ? If this, how are rebuild it ?

This broken indexes can cause great lost of performence in the server ? Sometimes when this process is running, consumed all CPU causing performance lost.

If it could be something else, can anybody give me some help ?

Do I make myself clear ? (My english in not very good)

Juan