sFTP Error on openDir FXP_OPENDIR

Hi.

I crawl with sFTP a Directory and get this Error:

ChilkatLog:
 OpenDir:
 DllDate: Mar 12 2016 
 ChilkatVersion: 9.5.0.56
 UnlockPrefix: XXXXXXX
 Architecture: Little Endian;
 64-bit Language: MAC OS X PHP
 VerboseLogging: 0
 SshVersion: SSH-2.0-OpenSSH_6.9
 SftpVersion: 3
 openDir: path: /Users/xyz/test/Go3/01 Das Unternehmen/01.03 Leistungsspektrum/ auto
 AdjustedPath: /Users/xyz/test/Go3/01 Das Unternehmen/01.03 Leistungsspektrum
 Sent FXP_OPENDIR
 StatusResponseFromServer:
 Request: FXP_OPENDIR
 InformationReceivedFromServer:
 StatusCode: 4
 StatusMessage: Failure 
 --InformationReceivedFromServer
 --StatusResponseFromServer
 --openDir Failed.
 --OpenDir
 --ChilkatLog

I have on tests set all the Rights on the directories to 777. But this would not help.

Any Idea?

Thanks. Grunon