EZRanksLite Internal Error

org.bukkit.command.CommandException: Unhandled exception executing command 'eztoggle' in plugin EZRanksLite vv1.6
	at org.bukkit.command.PluginCommand.execute(PluginCommand.java:46) ~[craftbukkit.jar:git-Spigot-ea179b3-6e0120a]
	at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:141) ~[craftbukkit.jar:git-Spigot-ea179b3-6e0120a]
	at org.bukkit.craftbukkit.v1_8_R2.CraftServer.dispatchCommand(CraftServer.java:646) ~[craftbukkit.jar:git-Spigot-ea179b3-6e0120a]
	at net.minecraft.server.v1_8_R2.PlayerConnection.handleCommand(PlayerConnection.java:1133) [craftbukkit.jar:git-Spigot-ea179b3-6e0120a]
	at net.minecraft.server.v1_8_R2.PlayerConnection.a(PlayerConnection.java:968) [craftbukkit.jar:git-Spigot-ea179b3-6e0120a]
	at net.minecraft.server.v1_8_R2.PacketPlayInChat.a(PacketPlayInChat.java:45) [craftbukkit.jar:git-Spigot-ea179b3-6e0120a]
	at net.minecraft.server.v1_8_R2.PacketPlayInChat.a(PacketPlayInChat.java:1) [craftbukkit.jar:git-Spigot-ea179b3-6e0120a]
	at net.minecraft.server.v1_8_R2.PlayerConnectionUtils$1.run(SourceFile:13) [craftbukkit.jar:git-Spigot-ea179b3-6e0120a]
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_20-ea]
	at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_20-ea]
	at net.minecraft.server.v1_8_R2.SystemUtils.a(SourceFile:60) [craftbukkit.jar:git-Spigot-ea179b3-6e0120a]
	at net.minecraft.server.v1_8_R2.MinecraftServer.A(MinecraftServer.java:710) [craftbukkit.jar:git-Spigot-ea179b3-6e0120a]
	at net.minecraft.server.v1_8_R2.DedicatedServer.A(DedicatedServer.java:368) [craftbukkit.jar:git-Spigot-ea179b3-6e0120a]
	at net.minecraft.server.v1_8_R2.MinecraftServer.z(MinecraftServer.java:651) [craftbukkit.jar:git-Spigot-ea179b3-6e0120a]
	at net.minecraft.server.v1_8_R2.MinecraftServer.run(MinecraftServer.java:554) [craftbukkit.jar:git-Spigot-ea179b3-6e0120a]
	at java.lang.Thread.run(Thread.java:745) [?:1.8.0_20-ea]
Caused by: java.lang.NoSuchMethodError: ru.tehkode.permissions.PermissionManager.getUser(Ljava/util/UUID;)Lru/tehkode/permissions/PermissionUser;
	at net.milkbowl.vault.permission.plugins.Permission_PermissionsEx.getUser(Permission_PermissionsEx.java:243) ~[?:?]
	at net.milkbowl.vault.permission.plugins.Permission_PermissionsEx.getPrimaryGroup(Permission_PermissionsEx.java:264) ~[?:?]
	at net.milkbowl.vault.permission.Permission.getPrimaryGroup(Permission.java:738) ~[?:?]
	at me.clip.ezrankslite.hooks.VaultPerms.getGroup(VaultPerms.java:61) ~[?:?]
	at me.clip.ezrankslite.hooks.Hooks.getGroup(Hooks.java:42) ~[?:?]
	at me.clip.ezrankslite.scoreboard.ScoreboardHandler.createScoreboard(ScoreboardHandler.java:295) ~[?:?]
	at me.clip.ezrankslite.commands.ScoreboardToggleCommand.onCommand(ScoreboardToggleCommand.java:91) ~[?:?]
	at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) ~[craftbukkit.jar:git-Spigot-ea179b3-6e0120a]
	... 15 more
>