Solved java.lang.OutOfMemoryError

At first the commands stop working and then:

[16:35:01] [Server thread/INFO]: [PermissionsEx] Enabling PermissionsEx v1.20.4
[16:35:04] [Server thread/ERROR]: Error occurred while enabling PermissionsEx v1.20.4 (Is it up to date?)
java.lang.OutOfMemoryError: PermGen space
at ru.tehkode.permissions.bukkit.PermissionsEx.onEnable(PermissionsEx.java:134) ~[?:?]
at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:250) ~[craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3039jnks]
at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:324) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3039jnks]
at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:404) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3039jnks]
at org.bukkit.craftbukkit.v1_7_R2.CraftServer.loadPlugin(CraftServer.java:441) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3039jnks]
at org.bukkit.craftbukkit.v1_7_R2.CraftServer.enablePlugins(CraftServer.java:375) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3039jnks]
at org.bukkit.craftbukkit.v1_7_R2.CraftServer.reload(CraftServer.java:786) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3039jnks]
at org.bukkit.Bukkit.reload(Bukkit.java:288) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3039jnks]
at org.bukkit.command.defaults.ReloadCommand.execute(ReloadCommand.java:23) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3039jnks]
at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:180) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3039jnks]
at org.bukkit.craftbukkit.v1_7_R2.CraftServer.dispatchCommand(CraftServer.java:696) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3039jnks]
at org.bukkit.craftbukkit.v1_7_R2.CraftServer.dispatchServerCommand(CraftServer.java:683) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3039jnks]
at net.minecraft.server.v1_7_R2.DedicatedServer.ax(DedicatedServer.java:286) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3039jnks]
at net.minecraft.server.v1_7_R2.DedicatedServer.v(DedicatedServer.java:251) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3039jnks]
at net.minecraft.server.v1_7_R2.MinecraftServer.u(MinecraftServer.java:548) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3039jnks]
at net.minecraft.server.v1_7_R2.MinecraftServer.run(MinecraftServer.java:459) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3039jnks]
at net.minecraft.server.v1_7_R2.ThreadServerApplication.run(SourceFile:618) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3039jnks]
[16:35:04] [Server thread/INFO]: WEPIF: Using the Bukkit Permissions API.
[16:35:04] [Server thread/INFO]: [Vault][Permission] PermissionsEx hooked.
[16:35:04] [Server thread/INFO]: [Vault][Chat] PermissionsEx_Chat hooked.
[16:35:04] [Server thread/INFO]: [WorldGuard] Enabling WorldGuard v5.9
[16:35:05] [Server thread/ERROR]: Error occurred while enabling WorldGuard v5.9 (Is it up to date?)
java.lang.OutOfMemoryError: PermGen space
at java.lang.ClassLoader.defineClass1(Native Method) ~[?:1.7.0_51]
at java.lang.ClassLoader.defineClass(Unknown Source) ~[?:1.7.0_51]
at java.security.SecureClassLoader.defineClass(Unknown Source) ~[?:1.7.0_51]
at java.net.URLClassLoader.defineClass(Unknown Source) ~[?:1.7.0_51]
at java.net.URLClassLoader.access$100(Unknown Source) ~[?:1.7.0_51]
at java.net.URLClassLoader$1.run(Unknown Source) ~[?:1.7.0_51]
at java.net.URLClassLoader$1.run(Unknown Source) ~[?:1.7.0_51]
at java.security.AccessController.doPrivileged(Native Method) ~[?:1.7.0_51]
at java.net.URLClassLoader.findClass(Unknown Source) ~[?:1.7.0_51]
at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:77) ~[craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3039jnks]
at org.bukkit.plugin.java.JavaPluginLoader.getClassByName(JavaPluginLoader.java:191) ~[craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3039jnks]
at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:73) ~[craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3039jnks]
at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:62) ~[craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3039jnks]
at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.7.0_51]
at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.7.0_51]
at com.sk89q.worldguard.bukkit.WorldGuardPlugin.onEnable(WorldGuardPlugin.java:136) ~[?:?]
at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:250) ~[craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3039jnks]
at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:324) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3039jnks]
at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:404) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3039jnks]
at org.bukkit.craftbukkit.v1_7_R2.CraftServer.loadPlugin(CraftServer.java:441) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3039jnks]
at org.bukkit.craftbukkit.v1_7_R2.CraftServer.enablePlugins(CraftServer.java:375) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3039jnks]
at org.bukkit.craftbukkit.v1_7_R2.CraftServer.reload(CraftServer.java:786) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3039jnks]
at org.bukkit.Bukkit.reload(Bukkit.java:288) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3039jnks]
at org.bukkit.command.defaults.ReloadCommand.execute(ReloadCommand.java:23) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3039jnks]
at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:180) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3039jnks]
at org.bukkit.craftbukkit.v1_7_R2.CraftServer.dispatchCommand(CraftServer.java:696) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3039jnks]
at org.bukkit.craftbukkit.v1_7_R2.CraftServer.dispatchServerCommand(CraftServer.java:683) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3039jnks]
at net.minecraft.server.v1_7_R2.DedicatedServer.ax(DedicatedServer.java:286) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3039jnks]
at net.minecraft.server.v1_7_R2.DedicatedServer.v(DedicatedServer.java:251) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3039jnks]
at net.minecraft.server.v1_7_R2.MinecraftServer.u(MinecraftServer.java:548) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3039jnks]
at net.minecraft.server.v1_7_R2.MinecraftServer.run(MinecraftServer.java:459) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3039jnks]
at net.minecraft.server.v1_7_R2.ThreadServerApplication.run(SourceFile:618) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3039jnks]
[16:35:05] [Server thread/INFO]: [Essentials] Enabling Essentials v2.13.1
[16:35:06] [Server thread/ERROR]: java.lang.OutOfMemoryError: PermGen space
[16:35:20] [Server thread/INFO]: Stopping server
[16:35:20] [Server thread/INFO]: [Essentials] Disabling Essentials v2.13.1
[16:35:20] [Server thread/WARN]: Essentials userMap not initialized
[16:35:29] [Netty IO #2/INFO]: < [Player] Dinnerbone> s

 

Rixs you ran out of ram allocate more if possible

 

How? i have 4GB ram how much my server needs?

 

Help?

 

It depends on how many plugins you have but try 1gb or if you already have that increase it to 2gb.