All right so
20:50 Feb/03/2014: Background: (/usr/local/lxlabs/kloxo/httpdocs) '/opt/php52s/bin/php' '../bin/common/backup.php' '--class=client' '--name=admin' '--v-backup_file_name=hehe' '' >/dev/null 2>&1 &
20:57 Feb/03/2014: Background: (/usr/local/lxlabs/kloxo/httpdocs) '/opt/php52s/bin/php' '../bin/common/backup.php' '--class=client' '--name=admin' '--v-backup_file_name=haha' '' >/dev/null 2>&1 &
21:15 Feb/03/2014: 0: [(__system__:/usr/local/lxlabs/kloxo/httpdocs) 'chmod' '0700' '/tmp/backupcM50pw']
21:15 Feb/03/2014: 0: [(__system__:/usr/local/lxlabs/kloxo/httpdocs) 'file' '-b' '/usr/local/lxlabs/kloxo/httpdocs/']
21:15 Feb/03/2014: Closed Exec /usr/local/lxlabs/kloxo/cexe/closeinput 'sh /script/load-wrapper >/dev/null 2>&1 &' >/dev/null 2>&1 &
21:33 Feb/03/2014: Background: (/usr/local/lxlabs/kloxo/httpdocs) '/opt/php52s/bin/php' '../bin/common/backup.php' '--class=client' '--name=admin' '--v-backup_file_name=kk' '' >/dev/null 2>&1 &
[root@vps log]#
and shell_error nothing useful… any idea?