[Essentials] EssentialsTimer Error:
ru.tehkode.permissions.exceptions.PermissionsNotAvailable: Permissions manager is not accessable. Is the PermissionsEx plugin enabled?
        at ru.tehkode.permissions.bukkit.PermissionsEx.getPermissionManager(PermissionsEx.java:405) ~[PermissionsEx-1.23.4.jar:?]
        at net.milkbowl.vault.chat.plugins.Chat_PermissionsEx.getUser(Chat_PermissionsEx.java:107) ~[Vault.jar:?]
        at net.milkbowl.vault.chat.plugins.Chat_PermissionsEx.getPlayerPrefix(Chat_PermissionsEx.java:291) ~[Vault.jar:?]
        at net.milkbowl.vault.chat.Chat.getPlayerPrefix(Chat.java:91) ~[Vault.jar:?]
        at com.earth2me.essentials.perm.impl.AbstractVaultHandler.getPrefix(AbstractVaultHandler.java:48) ~[EssentialsX-2.0.1.jar:?]
        at com.earth2me.essentials.perm.PermissionsHandler.getPrefix(PermissionsHandler.java:68) ~[EssentialsX-2.0.1.jar:?]
        at com.earth2me.essentials.User.getNick(User.java:313) ~[EssentialsX-2.0.1.jar:?]
        at com.earth2me.essentials.User.getNick(User.java:282) ~[EssentialsX-2.0.1.jar:?]
        at com.earth2me.essentials.User.setDisplayNick(User.java:342) ~[EssentialsX-2.0.1.jar:?]
        at com.earth2me.essentials.User.checkActivity(User.java:587) ~[EssentialsX-2.0.1.jar:?]
        at com.earth2me.essentials.EssentialsTimer.run(EssentialsTimer.java:58) [EssentialsX-2.0.1.jar:?]
        at org.bukkit.craftbukkit.v1_12_R1.scheduler.CraftTask.run(CraftTask.java:53) [craftbukkit-1.12.jar:git-Bukkit-9a1fc1e]
        at org.bukkit.craftbukkit.v1_12_R1.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:352) [craftbukkit-1.12.jar:git-Bukkit-9a1fc1e]
        at net.minecraft.server.v1_12_R1.MinecraftServer.D(MinecraftServer.java:689) [craftbukkit-1.12.jar:git-Bukkit-9a1fc1e]
        at net.minecraft.server.v1_12_R1.DedicatedServer.D(DedicatedServer.java:370) [craftbukkit-1.12.jar:git-Bukkit-9a1fc1e]
        at net.minecraft.server.v1_12_R1.MinecraftServer.C(MinecraftServer.java:650) [craftbukkit-1.12.jar:git-Bukkit-9a1fc1e]
        at net.minecraft.server.v1_12_R1.MinecraftServer.run(MinecraftServer.java:554) [craftbukkit-1.12.jar:git-Bukkit-9a1fc1e]
        at java.lang.Thread.run(Unknown Source) [?:1.8.0_151]