[11:28:40] [Server thread/INFO]: [HideAndSeek] Enabling HideAndSeek v2.4
[11:28:40] [Server thread/ERROR]: Error occurred while enabling HideAndSeek v2.4 (Is it up to date?)
java.lang.NoSuchMethodError: org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(Ljava/io/InputStream;)Lorg/bukkit/configuration/file/YamlConfiguration;
	at me.wazup.hideandseek.FilesManager.reloadArenasConfig(FilesManager.java:138) ~[?:?]
	at me.wazup.hideandseek.FilesManager.setupAll(FilesManager.java:48) ~[?:?]
	at me.wazup.hideandseek.main.onEnable(main.java:145) ~[?:?]
	at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:264) ~[spigot.jar:git-Spigot-1ffab67-68b0515]
	at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:337) [spigot.jar:git-Spigot-1ffab67-68b0515]
	at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:402) [spigot.jar:git-Spigot-1ffab67-68b0515]
	at org.bukkit.craftbukkit.v1_12_R1.CraftServer.enablePlugin(CraftServer.java:376) [spigot.jar:git-Spigot-1ffab67-68b0515]
	at org.bukkit.craftbukkit.v1_12_R1.CraftServer.enablePlugins(CraftServer.java:326) [spigot.jar:git-Spigot-1ffab67-68b0515]
	at net.minecraft.server.v1_12_R1.MinecraftServer.t(MinecraftServer.java:421) [spigot.jar:git-Spigot-1ffab67-68b0515]
	at net.minecraft.server.v1_12_R1.MinecraftServer.l(MinecraftServer.java:382) [spigot.jar:git-Spigot-1ffab67-68b0515]
	at net.minecraft.server.v1_12_R1.MinecraftServer.a(MinecraftServer.java:337) [spigot.jar:git-Spigot-1ffab67-68b0515]
	at net.minecraft.server.v1_12_R1.DedicatedServer.init(DedicatedServer.java:272) [spigot.jar:git-Spigot-1ffab67-68b0515]
	at net.minecraft.server.v1_12_R1.MinecraftServer.run(MinecraftServer.java:544) [spigot.jar:git-Spigot-1ffab67-68b0515]
	at java.lang.Thread.run(Unknown Source) [?:1.8.0_131]