[15:26:04 ERROR]: Error occurred while enabling LibsDisguises v10.0.31 (Is it up to date?)
java.lang.NoClassDefFoundError: org/bukkit/boss/BarStyle
at me.libraryaddict.disguise.DisguiseConfig.<clinit>(DisguiseConfig.java:213) ~[?:?]
at me.libraryaddict.disguise.LibsDisguises.onEnable(LibsDisguises.java:178) ~[?:?]
at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:321) ~[spigot-1.8.8.jar:git-Spigot-21fe707-741a1bd]
at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:340) [spigot-1.8.8.jar:git-Spigot-21fe707-741a1bd]
at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:405) [spigot-1.8.8.jar:git-Spigot-21fe707-741a1bd]
at org.bukkit.craftbukkit.v1_8_R3.CraftServer.loadPlugin(CraftServer.java:357) [spigot-1.8.8.jar:git-Spigot-21fe707-741a1bd]
at org.bukkit.craftbukkit.v1_8_R3.CraftServer.enablePlugins(CraftServer.java:317) [spigot-1.8.8.jar:git-Spigot-21fe707-741a1bd]
at net.minecraft.server.v1_8_R3.MinecraftServer.s(MinecraftServer.java:414) [spigot-1.8.8.jar:git-Spigot-21fe707-741a1bd]
at net.minecraft.server.v1_8_R3.MinecraftServer.k(MinecraftServer.java:378) [spigot-1.8.8.jar:git-Spigot-21fe707-741a1bd]
at net.minecraft.server.v1_8_R3.MinecraftServer.a(MinecraftServer.java:333) [spigot-1.8.8.jar:git-Spigot-21fe707-741a1bd]
at net.minecraft.server.v1_8_R3.DedicatedServer.init(DedicatedServer.java:263) [spigot-1.8.8.jar:git-Spigot-21fe707-741a1bd]
at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:525) [spigot-1.8.8.jar:git-Spigot-21fe707-741a1bd]
at java.lang.Thread.run(Unknown Source) [?:1.8.0_341]
Caused by: java.lang.ClassNotFoundException: org.bukkit.boss.BarStyle
at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:91) ~[spigot-1.8.8.jar:git-Spigot-21fe707-741a1bd]
at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:86) ~[spigot-1.8.8.jar:git-Spigot-21fe707-741a1bd]
at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_341]
at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_341]
... 13 more