Hi Pavel,
I am sorry for the delay of this reply.
Regarding your issue, I've checked the code and look like in your JomSocial, the only custom profile 'Редактор' but this custom profile do not have any custom fields attached. Usually this case shouldn't happen but I've added a checking for this case and now I am able to run the migrator on your site and the migration executed correctly and completed. Please see
http://screencast.com/t/NTnhayxftn
The fix will be added into next release of EasySocial as well
Hope this help and have a nice day