Direwolf20 1.10, 1.12.1 server does not start

Server-Software Forge
1

I know, I know, someone else not having luck with a Direwolf server. I have to try, though.

FTBPresentsDirewolf20110-1.12-1
FTBserver-1.10.2-12.18.3.2316-universal.jar

Running MineOS 9.3.5 on FreeNAS as a plugin
I have followed all of the tutorials I have found on here, including running through THIS using updated information for the new version of the modpack.
I have updated my java to openjdk8.
It seems like everything is in order in the WebUI

When I attempt to start the server using the WebUI, it is up for a few seconds before going back down. It appears, in the server logs that it is a java version mismatch, but I’m at a loss as to how to fix it. Here are my logs:

Server Log
MineOS Log

I appreciate any help you can give me going forward. Thanks in advance

-DiscovererDada

2

Hrm, this could be related to the failing startup

[03:38:06] [main/ERROR] [FML/]: An error occurred trying to configure the minecraft home at /var/games/minecraft/servers/DW20_Survival/. for Forge Mod Loader
java.lang.UnsupportedClassVersionError: appeng/coremod/AppEngCore : Unsupported major.minor version 52.0

Don’t have a FreeNAS box up to reproduce, but I’ll see if there’s anything else I can check regarding your DW version and openjdk8