[20:25:41] [Server thread/ERROR]: Could not pass event PlayerQuitEvent to SimpleInventoryBackup v1.3
org.bukkit.event.EventException
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:310) ~[spigot_1.8.7_b3c0272-7723b90.jar:git-Spigot-b3c0272-7723b90]
	at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[spigot_1.8.7_b3c0272-7723b90.jar:git-Spigot-b3c0272-7723b90]
	at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:502) [spigot_1.8.7_b3c0272-7723b90.jar:git-Spigot-b3c0272-7723b90]
	at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:487) [spigot_1.8.7_b3c0272-7723b90.jar:git-Spigot-b3c0272-7723b90]
	at net.minecraft.server.v1_8_R3.PlayerList.disconnect(PlayerList.java:346) [spigot_1.8.7_b3c0272-7723b90.jar:git-Spigot-b3c0272-7723b90]
	at net.minecraft.server.v1_8_R3.PlayerConnection.a(PlayerConnection.java:844) [spigot_1.8.7_b3c0272-7723b90.jar:git-Spigot-b3c0272-7723b90]
	at net.minecraft.server.v1_8_R3.NetworkManager.l(NetworkManager.java:314) [spigot_1.8.7_b3c0272-7723b90.jar:git-Spigot-b3c0272-7723b90]
	at net.minecraft.server.v1_8_R3.ServerConnection.c(ServerConnection.java:145) [spigot_1.8.7_b3c0272-7723b90.jar:git-Spigot-b3c0272-7723b90]
	at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:817) [spigot_1.8.7_b3c0272-7723b90.jar:git-Spigot-b3c0272-7723b90]
	at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:367) [spigot_1.8.7_b3c0272-7723b90.jar:git-Spigot-b3c0272-7723b90]
	at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:657) [spigot_1.8.7_b3c0272-7723b90.jar:git-Spigot-b3c0272-7723b90]
	at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:560) [spigot_1.8.7_b3c0272-7723b90.jar:git-Spigot-b3c0272-7723b90]
	at java.lang.Thread.run(Unknown Source) [?:1.7.0_51]
Caused by: java.lang.NullPointerException
	at org.yaml.snakeyaml.emitter.Emitter.expectNode(Emitter.java:400) ~[spigot_1.8.7_b3c0272-7723b90.jar:git-Spigot-b3c0272-7723b90]
	at org.yaml.snakeyaml.emitter.Emitter.access$1600(Emitter.java:62) ~[spigot_1.8.7_b3c0272-7723b90.jar:git-Spigot-b3c0272-7723b90]
	at org.yaml.snakeyaml.emitter.Emitter$ExpectBlockMappingSimpleValue.expect(Emitter.java:641) ~[spigot_1.8.7_b3c0272-7723b90.jar:git-Spigot-b3c0272-7723b90]
	at org.yaml.snakeyaml.emitter.Emitter.emit(Emitter.java:216) ~[spigot_1.8.7_b3c0272-7723b90.jar:git-Spigot-b3c0272-7723b90]
	at org.yaml.snakeyaml.serializer.Serializer.serializeNode(Serializer.java:181) ~[spigot_1.8.7_b3c0272-7723b90.jar:git-Spigot-b3c0272-7723b90]
	at org.yaml.snakeyaml.serializer.Serializer.serializeNode(Serializer.java:205) ~[spigot_1.8.7_b3c0272-7723b90.jar:git-Spigot-b3c0272-7723b90]
	at org.yaml.snakeyaml.serializer.Serializer.serializeNode(Serializer.java:206) ~[spigot_1.8.7_b3c0272-7723b90.jar:git-Spigot-b3c0272-7723b90]
	at org.yaml.snakeyaml.serializer.Serializer.serialize(Serializer.java:112) ~[spigot_1.8.7_b3c0272-7723b90.jar:git-Spigot-b3c0272-7723b90]
	at org.yaml.snakeyaml.Yaml.dumpAll(Yaml.java:243) ~[spigot_1.8.7_b3c0272-7723b90.jar:git-Spigot-b3c0272-7723b90]
	at org.yaml.snakeyaml.Yaml.dumpAll(Yaml.java:206) ~[spigot_1.8.7_b3c0272-7723b90.jar:git-Spigot-b3c0272-7723b90]
	at org.yaml.snakeyaml.Yaml.dump(Yaml.java:181) ~[spigot_1.8.7_b3c0272-7723b90.jar:git-Spigot-b3c0272-7723b90]
	at org.bukkit.configuration.file.YamlConfiguration.saveToString(YamlConfiguration.java:40) ~[spigot_1.8.7_b3c0272-7723b90.jar:git-Spigot-b3c0272-7723b90]
	at org.bukkit.configuration.file.FileConfiguration.save(FileConfiguration.java:103) ~[spigot_1.8.7_b3c0272-7723b90.jar:git-Spigot-b3c0272-7723b90]
	at io.github.cammy_the_block.TheListener.onQuitEvent(SimpleInventoryBackup.java:281) ~[?:?]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.7.0_51]
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_51]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_51]
	at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.7.0_51]
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:306) ~[spigot_1.8.7_b3c0272-7723b90.jar:git-Spigot-b3c0272-7723b90]
	... 12 more