Why do I have warning items and their contents could not be backed up, No such file or directory (4038203)

Looking at the binary log extract  below we see the following warnings (items and their contents could not be backed up)  on job ID 5  incremental backup of netvault server or client xxxx.   double click the yellow dot with the ! inside and it will see list of files that do not get backed up on netvault 9.2 or below or on netvault 10 select the corresponding lime and select more info.


Warning   2015/02/11 09:28:19   5   Data Plugin   xxxx   665905 items and their contents could not be backed up
Warning   2015/02/12 09:41:48   5   Data Plugin   xxxx   783502 items and their contents could not be backed up
Warning   2015/02/13 09:53:22   5   Data Plugin   xxxx   998916 items and their contents could not be backed up

The list shows the reason “No such file or directory” as seen below

/Volumes/Time Machine/Backups.backupdb/nottm server/2015-02-16-233123 : No such file or directory

/Volumes/Time Machine/Backups.backupdb/nottm server/2015-02-17-013510 : No such file or directory

/Volumes/Time Machine/Backups.backupdb/nottm server/2015-02-17-013510/.Backup.log : No