[16:06:07] [Craft Scheduler Thread - 4/ERROR]: Could not pass event InventoryOpenEvent to LagMonitor v1.11.7
org.bukkit.event.EventException
	at org.bukkit.plugin.EventExecutor$1.execute(EventExecutor.java:46) ~[patched_1.11.2.jar:git-Paper-993]
	at co.aikar.timings.TimedEventExecutor.execute(TimedEventExecutor.java:74) ~[patched_1.11.2.jar:git-Paper-993]
	at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[patched_1.11.2.jar:git-Paper-993]
	at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:517) [patched_1.11.2.jar:git-Paper-993]
	at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:502) [patched_1.11.2.jar:git-Paper-993]
	at org.bukkit.craftbukkit.v1_11_R1.event.CraftEventFactory.callInventoryOpenEvent(CraftEventFactory.java:773) [patched_1.11.2.jar:git-Paper-993]
	at net.minecraft.server.v1_11_R1.EntityPlayer.openContainer(EntityPlayer.java:750) [patched_1.11.2.jar:git-Paper-993]
	at org.bukkit.craftbukkit.v1_11_R1.entity.CraftHumanEntity.openInventory(CraftHumanEntity.java:194) [patched_1.11.2.jar:git-Paper-993]
	at me.jacobculley.customgui.GUI$1.run(GUI.java:253) [CustomGUI.jar:?]
	at org.bukkit.craftbukkit.v1_11_R1.scheduler.CraftTask.run(CraftTask.java:58) [patched_1.11.2.jar:git-Paper-993]
	at org.bukkit.craftbukkit.v1_11_R1.scheduler.CraftAsyncTask.run(CraftAsyncTask.java:52) [patched_1.11.2.jar:git-Paper-993]
	at com.destroystokyo.paper.ServerSchedulerReportingWrapper.run(ServerSchedulerReportingWrapper.java:22) [patched_1.11.2.jar:git-Paper-993]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [?:1.8.0_111]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [?:1.8.0_111]
	at java.lang.Thread.run(Thread.java:745) [?:1.8.0_111]
Caused by: java.lang.RuntimeException: java.lang.ClassNotFoundException: com.destroystokyo.paper.event.executor.asm.generated.GeneratedEventExecutor139
	at com.github.games647.lagmonitor.PluginUtil.findPlugin(PluginUtil.java:24) ~[?:?]
	at com.github.games647.lagmonitor.listeners.ThreadSafetyListener.checkSafety(ThreadSafetyListener.java:150) ~[?:?]
	at com.github.games647.lagmonitor.listeners.ThreadSafetyListener.onInventoryOpen(ThreadSafetyListener.java:53) ~[?:?]
	at com.destroystokyo.paper.event.executor.asm.generated.GeneratedEventExecutor139.execute(Unknown Source) ~[?:?]
	at org.bukkit.plugin.EventExecutor$1.execute(EventExecutor.java:44) ~[patched_1.11.2.jar:git-Paper-993]
	... 14 more
Caused by: java.lang.ClassNotFoundException: com.destroystokyo.paper.event.executor.asm.generated.GeneratedEventExecutor139
	at java.net.URLClassLoader.findClass(URLClassLoader.java:381) ~[?:1.8.0_111]
	at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:102) ~[patched_1.11.2.jar:git-Paper-993]
	at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:87) ~[patched_1.11.2.jar:git-Paper-993]
	at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[?:1.8.0_111]
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.8.0_111]
	at java.lang.Class.forName0(Native Method) ~[?:1.8.0_111]
	at java.lang.Class.forName(Class.java:264) ~[?:1.8.0_111]
	at com.github.games647.lagmonitor.PluginUtil.findPlugin(PluginUtil.java:16) ~[?:?]
	at com.github.games647.lagmonitor.listeners.ThreadSafetyListener.checkSafety(ThreadSafetyListener.java:150) ~[?:?]
	at com.github.games647.lagmonitor.listeners.ThreadSafetyListener.onInventoryOpen(ThreadSafetyListener.java:53) ~[?:?]
	at com.destroystokyo.paper.event.executor.asm.generated.GeneratedEventExecutor139.execute(Unknown Source) ~[?:?]
	at org.bukkit.plugin.EventExecutor$1.execute(EventExecutor.java:44) ~[patched_1.11.2.jar:git-Paper-993]
	... 14 more