I've been having problems with my server crashing recently and I found this in the Log after one:

[14:03:11] [Spigot Watchdog Thread/ERROR]: Current Thread: luckperms-scheduler-worker-8
[14:03:11] [Spigot Watchdog Thread/ERROR]: PID: 175 | Suspended: false | Native: false | State: TIMED_WAITING
[14:03:11] [Spigot Watchdog Thread/ERROR]: Stack:
[14:03:11] [Spigot Watchdog Thread/ERROR]: sun.misc.Unsafe.park(Native Method)
[14:03:11] [Spigot Watchdog Thread/ERROR]: java.util.concurrent.locks.LockSupport.parkNanos(Unknown Source)
[14:03:11] [Spigot Watchdog Thread/ERROR]: java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(Unknown Source)
[14:03:11] [Spigot Watchdog Thread/ERROR]: java.util.concurrent.SynchronousQueue$TransferStack.transfer(Unknown Source)
[14:03:11] [Spigot Watchdog Thread/ERROR]: java.util.concurrent.SynchronousQueue.poll(Unknown Source)
[14:03:11] [Spigot Watchdog Thread/ERROR]: java.util.concurrent.ThreadPoolExecutor.getTask(Unknown Source)
[14:03:11] [Spigot Watchdog Thread/ERROR]: java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
[14:03:11] [Spigot Watchdog Thread/ERROR]: java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
[14:03:11] [Spigot Watchdog Thread/ERROR]: java.lang.Thread.run(Unknown Source)

I'm not sure if it's related as it's crashed before by me creating/modifying multiverse worlds when there's too many people on, but nothing was being created or world-edited for the last couple crashes

1. https://hasteb.in next time as this is horrible to read.
2. This sure isn't the entire log, so it isn't clear if that is the very first entry and therefore can't be 100% pinned down to be an issue with LP. So please provide your full log of this.

Nothing here to suggest an LP issue.