[16:23:52 ERROR]: Could not pass event PlayerJoinEvent to Stellys v1.0.0
org.bukkit.event.EventException: null
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:316) ~[Spigot.jar:git-Spigot-1a3504a-dfa7583]
        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:66) ~[Spigot.jar:git-Spigot-1a3504a-dfa7583]
        at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:507) [Spigot.jar:git-Spigot-1a3504a-dfa7583]
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:492) [Spigot.jar:git-Spigot-1a3504a-dfa7583]
        at net.minecraft.server.v1_13_R2.PlayerList.onPlayerJoin(PlayerList.java:343) [Spigot.jar:git-Spigot-1a3504a-dfa7583]
        at net.minecraft.server.v1_13_R2.PlayerList.a(PlayerList.java:162) [Spigot.jar:git-Spigot-1a3504a-dfa7583]
        at net.minecraft.server.v1_13_R2.LoginListener.b(LoginListener.java:149) [Spigot.jar:git-Spigot-1a3504a-dfa7583]
        at net.minecraft.server.v1_13_R2.LoginListener.tick(LoginListener.java:53) [Spigot.jar:git-Spigot-1a3504a-dfa7583]
        at net.minecraft.server.v1_13_R2.NetworkManager.a(NetworkManager.java:230) [Spigot.jar:git-Spigot-1a3504a-dfa7583]
        at net.minecraft.server.v1_13_R2.ServerConnection.c(ServerConnection.java:119) [Spigot.jar:git-Spigot-1a3504a-dfa7583]
        at net.minecraft.server.v1_13_R2.MinecraftServer.b(MinecraftServer.java:994) [Spigot.jar:git-Spigot-1a3504a-dfa7583]
        at net.minecraft.server.v1_13_R2.DedicatedServer.b(DedicatedServer.java:417) [Spigot.jar:git-Spigot-1a3504a-dfa7583]
        at net.minecraft.server.v1_13_R2.MinecraftServer.a(MinecraftServer.java:831) [Spigot.jar:git-Spigot-1a3504a-dfa7583]
        at net.minecraft.server.v1_13_R2.MinecraftServer.run(MinecraftServer.java:729) [Spigot.jar:git-Spigot-1a3504a-dfa7583]
        at java.lang.Thread.run(Thread.java:745) [?:1.8.0_101]
Caused by: java.util.concurrent.RejectedExecutionException: Task fr.stellys.Database$$Lambda$3094/738045464@6bdf640c rejected from java.util.concurrent.ThreadPoolExecutor@7294cc96[Terminated, pool size = 0, active threads = 0, queued tasks = 0, completed tasks = 1]
        at java.util.concurrent.ThreadPoolExecutor$AbortPolicy.rejectedExecution(ThreadPoolExecutor.java:2047) ~[?:1.8.0_101]
        at java.util.concurrent.ThreadPoolExecutor.reject(ThreadPoolExecutor.java:823) ~[?:1.8.0_101]
        at java.util.concurrent.ThreadPoolExecutor.execute(ThreadPoolExecutor.java:1369) ~[?:1.8.0_101]
        at java.util.concurrent.Executors$DelegatedExecutorService.execute(Executors.java:668) ~[?:1.8.0_101]
        at fr.stellys.Database.loadAccount(Database.java:71) ~[Stellys.jar:?]
        at fr.stellys.Stellys.onPlayerJoin(Stellys.java:66) ~[Stellys.jar:?]
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_101]
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_101]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_101]
        at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_101]
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:312) ~[Spigot.jar:git-Spigot-1a3504a-dfa7583]
        ... 14 more