Can't load ploop library: libploop.so: cannot open shared object file: No such file or directory
The above happens when you haven't installed the ploop tools:
yum -y install ploop........
OpenVZ has made vzctl version 4.7 default to using ploop which is a big annoyance. No one wants it otherwise we'd use Xen or KVM.
Make sure to manually specify vzctl 4.6.1 or you will have issues with old scripts breaking since it defaults to using ploop (a single image like Xen/KVM).
Here's a list to old versions of vzctl.........