Log from console:

[15:05:32 ERROR]: The server has stopped responding!
[15:05:32 ERROR]: Please report this to http://www.spigotmc.org/
[15:05:32 ERROR]: Be sure to include ALL relevant console errors and Minecraft crash reports
[15:05:32 ERROR]: Spigot version: git-Spigot-8a048fe-d8637df (MC: 1.9.4)
[15:05:32 ERROR]: ------------------------------
[15:05:32 ERROR]: Server thread dump (Look for plugins here before reporting to Spigot!):
[15:05:32 ERROR]: ------------------------------
[15:05:32 ERROR]: Current Thread: Server thread
[15:05:32 ERROR]: PID: 14 | Suspended: false | Native: false | State: WAITING
[15:05:32 ERROR]: Stack:
[15:05:32 ERROR]: java.lang.Object.wait(Native Method)
[15:05:32 ERROR]: org.bukkit.craftbukkit.libs.jline.internal.NonBlockingInputStream.run(NonBlockingInputStrea
.java:278)
[15:05:32 ERROR]: java.lang.Thread.run(Unknown Source)
[15:05:32 ERROR]: ------------------------------
[15:05:32 ERROR]: Current Thread: Snooper Timer
[15:05:32 ERROR]: PID: 12 | Suspended: false | Native: false | State: WAITING
[15:05:32 ERROR]: Stack:
[15:05:32 ERROR]: java.lang.Object.wait(Native Method)
[15:05:32 ERROR]: java.lang.Object.wait(Unknown Source)
[15:05:32 ERROR]: java.util.TimerThread.mainLoop(Unknown Source)
[15:05:32 ERROR]: java.util.TimerThread.run(Unknown Source)
[15:05:32 ERROR]: ------------------------------
[15:05:32 ERROR]: Current Thread: Attach Listener
[15:05:32 ERROR]: PID: 5 | Suspended: false | Native: false | State: RUNNABLE
[15:05:32 ERROR]: Stack:
[15:05:32 ERROR]: ------------------------------
[15:05:32 ERROR]: Current Thread: Signal Dispatcher
[15:05:32 ERROR]: PID: 4 | Suspended: false | Native: false | State: RUNNABLE
[15:05:32 ERROR]: Stack:
[15:05:32 ERROR]: ------------------------------
[15:05:32 ERROR]: Current Thread: Finalizer
[15:05:32 ERROR]: PID: 3 | Suspended: false | Native: false | State: WAITING
[15:05:32 ERROR]: Stack:
[15:05:32 ERROR]: java.lang.Object.wait(Native Method)
[15:05:32 ERROR]: java.lang.ref.ReferenceQueue.remove(Unknown Source)
[15:05:32 ERROR]: java.lang.ref.ReferenceQueue.remove(Unknown Source)
[15:05:32 ERROR]: java.lang.ref.Finalizer$FinalizerThread.run(Unknown Source)
[15:05:32 ERROR]: ------------------------------
[15:05:32 ERROR]: Current Thread: Reference Handler
[15:05:32 ERROR]: PID: 2 | Suspended: false | Native: false | State: WAITING
[15:05:32 ERROR]: Stack:
[15:05:32 ERROR]: java.lang.Object.wait(Native Method)
[15:05:32 ERROR]: java.lang.Object.wait(Unknown Source)
[15:05:32 ERROR]: java.lang.ref.Reference.tryHandlePending(Unknown Source)
[15:05:32 ERROR]: java.lang.ref.Reference$ReferenceHandler.run(Unknown Source)
[15:05:32 ERROR]: ------------------------------