This is a fix for the following forge error:
[01:01:02] [main/INFO] [mixin/]: SpongePowered MIXIN Subsystem Version=0.8.4 Source=file:/home/********/libraries/org/spongepowered/mixin/0.8.4/mixin-0.8.4.jar Service=ModLauncher Env=SERVER
Exception in thread "main" [01:01:06] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1052]: java.lang.NoSuchMethodError: sun.security.util.ManifestEntryVerifier.<init>(Ljava/util/jar/Manifest;)V
This is caused by a bad forge version. We have an older version of forge available which can be set via your `ploxhost.yml` file!
Open the file, and visit the "java-version" option. Set this to "forge_8" and reboot your server.
Once your server has rebooted, you will be booted with an older version of java, which fixes this error.
Please contact us if you have any questions or concerns.