On attempt to create a container the following message are displayed in the Action log:
New Container; Creating Container CT111 Operation has failed with Error Code # -5. See Problem # p2016-08-25_07-38-56.2 for details.
Problem report attached there sre errors like:
[2016/08/25 19:15:43] [WARN]  [HSPC::Action::VZAgent::_setup] [VZA]: can't setup Virtuozzo Container #111 parameters: Error invoking external utility: can't set VEth: ERROR:Failed to set IP for container 111 Address 192.168.1.143 is already in use by container 112
OBAS tries to assign an IP address which is in use by another container, probably not registered in OBAS one.
Please make sure that the IP address in question is assigned to the container in question exclusively.