Linux Client don´t start backup - CANNOT_OPEN_FILE (3)

Hi,

I installed the Linux client according to the procedure below:

But when I start the backup, I get the following message:

#########################################
Errors
20/12/16 08:39
Error getting filelist of BKPTEST. Errorcode: CANNOT_OPEN_FILE (3)
Errors
20/12/16 08:39
Backup had an early error. Deleting partial backup.
#########################################

I’ve checked the permissions on the directory, but it still does not work.
Would you help me?

Grateful

Anything can help me?