Server throws this error when unload first time.
[09:20:33] [Server thread/INFO]: [STDERR]: java.lang.Exception: Failed to create dir
[09:20:33] [Server thread/INFO]: [STDERR]: at omtteam.omlib.handler.OwnerShareHandler.saveToDisk(OwnerShareHandler.java:169)
[09:20:33] [Server thread/INFO]: [STDERR]: at omtteam.omlib.handler.EventHandler.worldUnloadEvent(EventHandler.java:33)

Looking at source, should this
if (path.toFile().mkdir()) {
be
if (!path.toFile().mkdir()) {
?

The directory was created, although it threw an exception as if it were not.