10:16:13 [SEVERE] Could not pass event PlayerInteractEvent to tekkitrestrict
10:15:24 [SEVERE] Could not pass event InventoryClickEvent to tekkitrestrict

at net.minecraft.server.NetworkManager.b(NetworkManager.java:234)
at net.minecraft.server.Packet15Place.handle(SourceFile:39)
at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:647)
at net.minecraft.server.ItemInWorldManager.interact(ItemInWorldManager.java:302)
at org.bukkit.craftbukkit.event.CraftEventFactory.callPlayerInteractEvent(CraftEventFactory.java:177)
at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:467)
10:15:21 [WARNING] Can't keep up! Did the system time change, or is the server overloaded?
... 13 more
at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:302)
at java.lang.reflect.Method.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at com.github.dreadslicer.tekkitrestrict.TRListener.onPlayerInteract(TRListener.java:213)
at com.github.dreadslicer.tekkitrestrict.tekkitrestrict.hasPermission(tekkitrestrict.java:415)
Caused by: java.lang.NoClassDefFoundError: ru/tehkode/permissions/PermissionManager
at net.minecraft.server.ThreadServerApplication.run(SourceFile:492)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:467)
at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:579)
at net.minecraft.server.NetworkListenThread.a(NetworkListenThread.java:83)
at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:119)
at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:482)
at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:304)
org.bukkit.event.EventException
at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:304)
org.bukkit.event.EventException
10:15:24 [SEVERE] Could not pass event InventoryClickEvent to tekkitrestrict