FTP Upload of Backup Manager fails

[computer-treff@tvcs.de]

Starting 6-8 weeks ago we are experiencing the following error message in automatic ftp upload by the backup manager.

Error:

Runtime error: Export dump to FTP failed at /usr/local/psa/admin/bin/plesk_agent_manager line 726.
at /usr/local/psa/admin/bin/plesk_agent_manager line 726
main:erform('verbose', 0, 'owner-type', 'server', 'split-size', undef, 'session-path', '/usr/local/psa/PMM/sessions/2014-02-23-081644.419', 'profile-name', ...) called at /usr/local/psa/admin/bin/plesk_agent_manager line 1311
main::__ANON__() called at /usr/local/psa/PMM/agents/shared/Error.pm line 406
eval {...} called at /usr/local/psa/PMM/agents/shared/Error.pm line 398
Error::subs::try('CODE(0x346fad0)', 'HASH(0x346fe00)') called at /usr/local/psa/admin/bin/plesk_agent_manager line 1319
main::main() called at /usr/local/psa/admin/bin/plesk_agent_manager line 1323.

Error:

The dump have been made successfully but can not be imported to FTP due to errors.
The dump 'DS_QC_info_1402230816.xml' have been leaved at repository. Please export it manually

Error:

Can't upload file '/usr/local/psa/PMM/tmp/backupdksbXI/DS_QC_info_1402230816.xml.tar' to ftp. Error code: 1

Any idea on how to solve this because the auto updated micro updates did so far not soölve it.

thx

 

[IgorG]

Do you have enough free diskspace on FTP server?

 

[computer-treff@tvcs.de]

Certainly yes,
FTP gets cleaned up regularly and currently has about 160Gb free space, enough for about 5 to 6 backup cycles.