I have it restored and going again with a nice starting area (big castle and useful things). realmc.minecraftr.us (that's my free afraid.org domain name for it specifically) Or if you prefer, tgserv.timothygruber.com. Oh, it's version 1.12.2. I didn't update it yet because there's a couple plugins I run that haven't updated yet.

Here is the thread with the fix.: http://mangolassi.it/topic/7605/installing-pocketmine-minecraft-pe-server-on-centos-7