Bukkit

 ERROR Could not pass event AsyncPlayerChatEvent to LaggRemover v2.0.6
15.12 22:15:47 [Server] INFO java.lang.IllegalStateException: Asynchronous getNearbyEntities! 15.12 22:15:47 [Server] INFO at org.spigotmc.AsyncCatcher.catchOp(AsyncCatcher.java:15) ~[patched_1.14.4.jar:git-Paper-235]
15.12 22:15:47 [Server] INFO at org.bukkit.craftbukkit.v1_14_R1.entity.CraftEntity.getNearbyEntities(CraftEntity.java:531) ~[patched_1.14.4.jar:git-Paper-235]
15.12 22:15:47 [Server] INFO at drew6017.lr.main.Events.onChat(Events.java:83) ~[?:?]
15.12 22:15:47 [Server] INFO at com.destroystokyo.paper.event.executor.asm.generated.GeneratedEventExecutor152.execute(Unknown Source) ~[?:?]
15.12 22:15:47 [Server] INFO at org.bukkit.plugin.EventExecutor.lambda$create$1(EventExecutor.java:69) ~[patched_1.14.4.jar:git-Paper-235]
15.12 22:15:47 [Server] INFO at co.aikar.timings.TimedEventExecutor.execute(TimedEventExecutor.java:76) ~[patched_1.14.4.jar:git-Paper-235]
15.12 22:15:47 [Server] INFO at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:70) ~[patched_1.14.4.jar:git-Paper-235]
15.12 22:15:47 [Server] INFO at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:545) ~[patched_1.14.4.jar:git-Paper-235]
15.12 22:15:47 [Server] INFO at net.minecraft.server.v1_14_R1.PlayerConnection.chat(PlayerConnection.java:1717) ~[patched_1.14.4.jar:git-Paper-235]
15.12 22:15:47 [Server] INFO at net.minecraft.server.v1_14_R1.PlayerConnection.a(PlayerConnection.java:1632) ~[patched_1.14.4.jar:git-Paper-235]
15.12 22:15:47 [Server] INFO at net.minecraft.server.v1_14_R1.PacketPlayInChat$1.run(PacketPlayInChat.java:41) ~[patched_1.14.4.jar:git-Paper-235]
15.12 22:15:47 [Server] INFO at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) ~[?:1.8.0_144]
15.12 22:15:47 [Server] INFO at java.util.concurrent.FutureTask.run(FutureTask.java:266) ~[?:1.8.0_144]
15.12 22:15:47 [Server] INFO at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:1.8.0_144]
15.12 22:15:47 [Server] INFO at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:1.8.0_144]
15.12 22:15:47 [Server] INFO at java.lang.Thread.run(Thread.java:748) [?:1.8.0_144]

Also having this issue. Closed the server multiple times. (It created an error log and all, but the server closed gracefully.) Not sure if this is an issue with Spigot or the plugin; regardless I hope it can get resolved, this plugin works wonders!