New experience - problem above was on PCD version 10 and we have another issue in migration task when process can't export configuration from old CUCM 6.1.5 cluster (I hope some another timers).
We got new version of PCD 10.5.1.1000-4 from TAC engineer and it works better but still in process of migration of subscriber it cannot continue due to some issue with starting tomcat service on fresh installed subscriber. Therefore we continue manually with installation of subscribers because migration of publisher was done by PCD.
In this case You must check some server related data to manually migrate like MoH, some cop files like language pack's ...
But still thanks Cisco for this tool because step-by-step upgrade from 6 to 10 is terrible.
I hope issue with Tomcat was only on our side and you will try to reinstall subscriber manually and continue with task in PCD. We cancel task with TAC engineer because had little time for whole migration :(