[10:05:15] [Server thread/INFO]: Deja set : {CraftPlayer{name=cercus}=org.bukkit.craftbukkit.v1_13_R1.boss.CraftBossBar@32b21531}
[10:05:15] [Server thread/ERROR]: Could not pass event PlayerJoinEvent to AdventSpells v1.0
org.bukkit.event.EventException: null
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:308) ~[spigot-1.13.jar:git-Spigot-ed1cec9-1c7adf7]
	at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[spigot-1.13.jar:git-Spigot-ed1cec9-1c7adf7]
	at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:500) [spigot-1.13.jar:git-Spigot-ed1cec9-1c7adf7]
	at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:485) [spigot-1.13.jar:git-Spigot-ed1cec9-1c7adf7]
	at net.minecraft.server.v1_13_R1.PlayerList.onPlayerJoin(PlayerList.java:343) [spigot-1.13.jar:git-Spigot-ed1cec9-1c7adf7]
	at net.minecraft.server.v1_13_R1.PlayerList.a(PlayerList.java:163) [spigot-1.13.jar:git-Spigot-ed1cec9-1c7adf7]
	at net.minecraft.server.v1_13_R1.LoginListener.b(LoginListener.java:150) [spigot-1.13.jar:git-Spigot-ed1cec9-1c7adf7]
	at net.minecraft.server.v1_13_R1.LoginListener.Y_(LoginListener.java:54) [spigot-1.13.jar:git-Spigot-ed1cec9-1c7adf7]
	at net.minecraft.server.v1_13_R1.NetworkManager.a(NetworkManager.java:231) [spigot-1.13.jar:git-Spigot-ed1cec9-1c7adf7]
	at net.minecraft.server.v1_13_R1.ServerConnection.c(ServerConnection.java:120) [spigot-1.13.jar:git-Spigot-ed1cec9-1c7adf7]
	at net.minecraft.server.v1_13_R1.MinecraftServer.w(MinecraftServer.java:984) [spigot-1.13.jar:git-Spigot-ed1cec9-1c7adf7]
	at net.minecraft.server.v1_13_R1.DedicatedServer.w(DedicatedServer.java:411) [spigot-1.13.jar:git-Spigot-ed1cec9-1c7adf7]
	at net.minecraft.server.v1_13_R1.MinecraftServer.v(MinecraftServer.java:819) [spigot-1.13.jar:git-Spigot-ed1cec9-1c7adf7]
	at net.minecraft.server.v1_13_R1.MinecraftServer.run(MinecraftServer.java:717) [spigot-1.13.jar:git-Spigot-ed1cec9-1c7adf7]
	at java.lang.Thread.run(Unknown Source) [?:1.8.0_161]
Caused by: java.lang.NullPointerException
	at fr.cercus.magic.Mana.onJoin(Mana.java:64) ~[?:?]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_161]
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_161]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_161]
	at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_161]
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:304) ~[spigot-1.13.jar:git-Spigot-ed1cec9-1c7adf7]
	... 14 more