Here my log:
25.02 21:50:43 [Server] ERROR com.earth2me.essentials.Teleport.teleportPlayer(Teleport.java:171)
25.02 21:50:43 [Server] ERROR com.earth2me.essentials.Teleport.teleport(Teleport.java:201)
25.02 21:50:43 [Server] ERROR com.earth2me.essentials.Teleport.now(Teleport.java:142)
25.02 21:50:43 [Server] ERROR org.bukkit.craftbukkit.v1_8_R3.entity.CraftPlayer.teleport(CraftPlayer.java:471)
25.02 21:50:43 [Server] ERROR net.minecraft.server.v1_8_R3.PlayerList.moveToWorld(PlayerList.java:628)
25.02 21:50:43 [Server] ERROR org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:487)
25.02 21:50:43 [Server] ERROR org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:502)
25.02 21:50:43 [Server] ERROR org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
25.02 21:50:43 [Server] ERROR org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:306)
25.02 21:50:43 [Server] ERROR java.lang.reflect.Method.invoke(Unknown Source)
25.02 21:50:43 [Server] ERROR sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
25.02 21:50:43 [Server] ERROR sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
25.02 21:50:43 [Server] ERROR sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
25.02 21:50:43 [Server] ERROR com.onarandombox.multiverseinventories.InventoriesListener.playerChangedWorld(InventoriesListener.java:189)
25.02 21:50:43 [Server] ERROR com.onarandombox.multiverseinventories.ShareHandler.handleSharing(ShareHandler.java:56)
25.02 21:50:43 [Server] ERROR com.onarandombox.multiverseinventories.WorldChangeShareHandler.handle(WorldChangeShareHandler.java:33)
25.02 21:50:43 [Server] ERROR com.onarandombox.multiverseinventories.WeakProfileContainer.getPlayerData(WeakProfileContainer.java:87)
25.02 21:50:43 [Server] ERROR com.onarandombox.multiverseinventories.WeakProfileContainer.getPlayerData(WeakProfileContainer.java:98)
25.02 21:50:43 [Server] ERROR com.onarandombox.multiverseinventories.util.data.FlatFilePlayerData.getPlayerData(FlatFilePlayerData.java:262)
25.02 21:50:43 [Server] ERROR com.onarandombox.multiverseinventories.util.data.FlatFilePlayerData$FileWriteThread.waitUntilEmpty(FlatFilePlayerData.java:228)
25.02 21:50:43 [Server] ERROR Stack:
25.02 21:50:43 [Server] ERROR PID: 15 | Suspended: false | Native: false | State: RUNNABLE
25.02 21:50:43 [Server] ERROR Current Thread: Server thread
25.02 21:50:43 [Server] ERROR ------------------------------
25.02 21:50:43 [Server] ERROR Server thread dump (Look for plugins here before reporting to Spigot!):
25.02 21:50:43 [Server] ERROR ------------------------------
25.02 21:50:43 [Server] ERROR Spigot version: git-Spigot-5f38d38-18fbb24 (MC: 1.8.8)
25.02 21:50:43 [Server] ERROR Be sure to include ALL relevant console errors and Minecraft crash reports
25.02 21:50:43 [Server] ERROR Please report this to http://www.spigotmc.org/
25.02 21:50:43 [Server] ERROR The server has stopped responding!