Plesk Migration Manager - DEBUG Free reserved disk space

Hi there,

i want to 70 clients move to a new centos and plesk server, but i have a problem with the Plesk Migration Manager:

Source System:
Virtualization: Parallels Cloud Server 6.0.10 SP1 (build 6.0.10-3174)
OS: CentOS 6.7 (Final)
Plesk: 12.0.18 Update #63

[root@www ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/ploop21902p1 296G 121G 165G 43% /
none 5.0G 4.0K 5.0G 1% /dev
none 5.0G 12K 5.0G 1% /dev/shm

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Target System...

Plesk Migration Manager - DEBUG Free reserved disk space