Bukkit

What steps will reproduce the problem?
1.Run any command with exception of /commandsigns
2.All further extensions (any command listed by running step 1) return "An internal error occurred while attempting to perform this command"
3.Applies to All other plugin commands from CommandSigns

What is the expected output? What do you see instead?
Expected: CommandSigns returns messages with further instruction/information relating to said command (exception of /commandsigns)
Output: "An internal error occurred while attempting to perform this command"

What version of the product are you using?
Version 1.9.1.1 for Minecraft 1.5.1
Craftbukkit/Minecraft version 1.5.2 (tried Minecraft version 1.5.1 with same outcome)

Do you have an error log of what happened?
Yes, full copy can be provided with instructions pertaining to preference of submission.
Error provided as primary response to running the command (issued from console
SEVERE Could not pass event PlayerJoinEvent to CommandSigns v1.9.1.1

Please provide any additional information below.
Additionally, first attempts to run plugin resulted in no permissions to groups allocated all nodes. Only /commandsigns worked, similar to current issue, with error returned on all other commands instead of no permissions. Cause of change unknown between the two results.

Apologies for leaving out, the extensions pertaining to updating (/commandsigns update, commandsigns update check, /commandsigns update force) seem to functioning as well, exempted from retuning an error as all other commands have. Using update force and reloading does not change the error in anyway. Thank you

I'm continuing to work on gathering more information, and it seems the permissions plugin BPermissions is conflicting. I isolated the issue to it, but have found no reason why it is conflicting. I have given myself all the nodes, but it continues to give the internal error message as before.

Apologies for continually adding to this post, I'm only trying to make this issue more clear. I just thought I'd put the error log in the chat if it helps. These errors all originated from adding both BPermissions and CommandSigns together. Neither produced errors when alone.

[SEVERE] Could not pass event PlayerJoinEvent to CommandSigns v1.9.1.1 org.bukkit.event.EventException at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:427) at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477) at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462) at net.minecraft.server.v1_5_R3.PlayerList.c(PlayerList.java:204) at net.minecraft.server.v1_5_R3.PlayerList.a(PlayerList.java:100) at net.minecraft.server.v1_5_R3.PendingConnection.d(PendingConnection.java:129) at net.minecraft.server.v1_5_R3.PendingConnection.c(PendingConnection.java:44) at net.minecraft.server.v1_5_R3.DedicatedServerConnectionThread.a(DedicatedServerConnectionThread.java:41) at net.minecraft.server.v1_5_R3.DedicatedServerConnection.b(SourceFile:29) at net.minecraft.server.v1_5_R3.MinecraftServer.r(MinecraftServer.java:581) at net.minecraft.server.v1_5_R3.DedicatedServer.r(DedicatedServer.java:226) at net.minecraft.server.v1_5_R3.MinecraftServer.q(MinecraftServer.java:477) at net.minecraft.server.v1_5_R3.MinecraftServer.run(MinecraftServer.java:410) at net.minecraft.server.v1_5_R3.ThreadServerApplication.run(SourceFile:573) Caused by: java.lang.NoClassDefFoundError: de/bananaco/bpermissions/api/CalculableType at net.milkbowl.vault.permission.plugins.Permission_bPermissions2.playerHas(Permission_bPermissions2.java:119) at net.milkbowl.vault.permission.plugins.Permission_bPermissions2.has(Permission_bPermissions2.java:95) at net.milkbowl.vault.permission.plugins.Permission_bPermissions2.has(Permission_bPermissions2.java:107) at org.zonedabone.commandsigns.CommandSigns.hasPermission(CommandSigns.java:70) at org.zonedabone.commandsigns.listener.EventListener.onPlayerJoin(EventListener.java:69) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:425) ... 14 more Caused by: java.lang.ClassNotFoundException: de.bananaco.bpermissions.api.CalculableType at java.net.URLClassLoader$1.run(Unknown Source) at java.net.URLClassLoader$1.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(Unknown Source) at org.bukkit.plugin.java.PluginClassLoader.findClass0(PluginClassLoader.java:80) at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:53) at java.lang.ClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) ... 24 more 2013-06-21 22:13:31 [SEVERE] Could not pass event PlayerJoinEvent to Vault v1.2.25-b320 org.bukkit.event.EventException at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:427) at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477) at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462) at net.minecraft.server.v1_5_R3.PlayerList.c(PlayerList.java:204) at net.minecraft.server.v1_5_R3.PlayerList.a(PlayerList.java:100) at net.minecraft.server.v1_5_R3.PendingConnection.d(PendingConnection.java:129) at net.minecraft.server.v1_5_R3.PendingConnection.c(PendingConnection.java:44) at net.minecraft.server.v1_5_R3.DedicatedServerConnectionThread.a(DedicatedServerConnectionThread.java:41) at net.minecraft.server.v1_5_R3.DedicatedServerConnection.b(SourceFile:29) at net.minecraft.server.v1_5_R3.MinecraftServer.r(MinecraftServer.java:581) at net.minecraft.server.v1_5_R3.DedicatedServer.r(DedicatedServer.java:226) at net.minecraft.server.v1_5_R3.MinecraftServer.q(MinecraftServer.java:477) at net.minecraft.server.v1_5_R3.MinecraftServer.run(MinecraftServer.java:410) at net.minecraft.server.v1_5_R3.ThreadServerApplication.run(SourceFile:573) Caused by: java.lang.NoClassDefFoundError: de/bananaco/bpermissions/api/CalculableType at net.milkbowl.vault.permission.plugins.Permission_bPermissions2.playerHas(Permission_bPermissions2.java:119) at net.milkbowl.vault.permission.plugins.Permission_bPermissions2.has(Permission_bPermissions2.java:95) at net.milkbowl.vault.Vault$VaultListener.onPlayerJoin(Vault.java:529) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:425) ... 14 more 2013-06-21 22:13:32 [SEVERE] Could not pass event EntityChangeBlockEvent to CoreProtect v1.54 org.bukkit.event.EventException at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:427) at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477) at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462) at org.bukkit.craftbukkit.v1_5_R3.event.CraftEventFactory.callEntityChangeBlockEvent(CraftEventFactory.java:511) at org.bukkit.craftbukkit.v1_5_R3.event.CraftEventFactory.callEntityChangeBlockEvent(CraftEventFactory.java:495) at net.minecraft.server.v1_5_R3.PathfinderGoalEatTile.e(PathfinderGoalEatTile.java:66) at net.minecraft.server.v1_5_R3.PathfinderGoalSelector.a(PathfinderGoalSelector.java:104) at net.minecraft.server.v1_5_R3.EntityLiving.bo(EntityLiving.java:1508) at net.minecraft.server.v1_5_R3.EntitySheep.bo(EntitySheep.java:44) at net.minecraft.server.v1_5_R3.EntityLiving.c(EntityLiving.java:1299) at net.minecraft.server.v1_5_R3.EntityAgeable.c(EntityAgeable.java:72) at net.minecraft.server.v1_5_R3.EntityAnimal.c(SourceFile:30) at net.minecraft.server.v1_5_R3.EntitySheep.c(EntitySheep.java:52) at net.minecraft.server.v1_5_R3.EntityLiving.l_(EntityLiving.java:526) at net.minecraft.server.v1_5_R3.World.entityJoinedWorld(World.java:1355) at net.minecraft.server.v1_5_R3.WorldServer.entityJoinedWorld(WorldServer.java:614) at net.minecraft.server.v1_5_R3.World.playerJoinedWorld(World.java:1336) at net.minecraft.server.v1_5_R3.World.tickEntities(World.java:1224) at net.minecraft.server.v1_5_R3.WorldServer.tickEntities(WorldServer.java:480) at net.minecraft.server.v1_5_R3.MinecraftServer.r(MinecraftServer.java:563) at net.minecraft.server.v1_5_R3.DedicatedServer.r(DedicatedServer.java:226) at net.minecraft.server.v1_5_R3.MinecraftServer.q(MinecraftServer.java:477) at net.minecraft.server.v1_5_R3.MinecraftServer.run(MinecraftServer.java:410) at net.minecraft.server.v1_5_R3.ThreadServerApplication.run(SourceFile:573) Caused by: java.lang.NoSuchMethodError: org.bukkit.event.entity.EntityChangeBlockEvent.getEntity()Lorg/bukkit/entity/LivingEntity; at aux.aux.aux.AUx.Code(CoreProtectionEntityListener.java:34) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:425) ... 24 more

On issuing a command:

[INFO] Robertthegoat issued server command: /commandsigns remove 2013-06-21 22:25:33 [SEVERE] null org.bukkit.command.CommandException: Unhandled exception executing command 'commandsigns' in plugin CommandSigns v1.9.1.1 at org.bukkit.command.PluginCommand.execute(PluginCommand.java:46) at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:189) at org.bukkit.craftbukkit.v1_5_R3.CraftServer.dispatchCommand(CraftServer.java:523) at net.minecraft.server.v1_5_R3.PlayerConnection.handleCommand(PlayerConnection.java:971) at net.minecraft.server.v1_5_R3.PlayerConnection.chat(PlayerConnection.java:889) at net.minecraft.server.v1_5_R3.PlayerConnection.a(PlayerConnection.java:846) at net.minecraft.server.v1_5_R3.Packet3Chat.handle(Packet3Chat.java:44) at net.minecraft.server.v1_5_R3.NetworkManager.b(NetworkManager.java:292) at net.minecraft.server.v1_5_R3.PlayerConnection.d(PlayerConnection.java:115) at net.minecraft.server.v1_5_R3.ServerConnection.b(SourceFile:35) at net.minecraft.server.v1_5_R3.DedicatedServerConnection.b(SourceFile:30) at net.minecraft.server.v1_5_R3.MinecraftServer.r(MinecraftServer.java:581) at net.minecraft.server.v1_5_R3.DedicatedServer.r(DedicatedServer.java:226) at net.minecraft.server.v1_5_R3.MinecraftServer.q(MinecraftServer.java:477) at net.minecraft.server.v1_5_R3.MinecraftServer.run(MinecraftServer.java:410) at net.minecraft.server.v1_5_R3.ThreadServerApplication.run(SourceFile:573) Caused by: java.lang.NoClassDefFoundError: de/bananaco/bpermissions/api/CalculableType at net.milkbowl.vault.permission.plugins.Permission_bPermissions2.playerHas(Permission_bPermissions2.java:119) at net.milkbowl.vault.permission.plugins.Permission_bPermissions2.has(Permission_bPermissions2.java:95) at net.milkbowl.vault.permission.plugins.Permission_bPermissions2.has(Permission_bPermissions2.java:107) at org.zonedabone.commandsigns.CommandSigns.hasPermission(CommandSigns.java:70) at org.zonedabone.commandsigns.CommandSigns.hasPermission(CommandSigns.java:61) at org.zonedabone.commandsigns.listener.CommandListener.remove(CommandListener.java:310) at org.zonedabone.commandsigns.listener.CommandListener.onCommand(CommandListener.java:241) at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) ... 15 more