Transporter Startup Error

Whenever I start my bukkit server, my Transporter plugin always gives me this error:

07:11 PM [SEVERE] Error occurred while enabling Transporter v8.14 (Is it up to date?)
java.lang.IllegalAccessError: tried to access class org.bukkit.plugin.java.PluginClassLoader from class com.frdfsnlght.transporter.Transporter
at com.frdfsnlght.transporter.Transporter.onEnable(Transporter.java:99)
at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:316)
at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:324)
at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:404)
at org.bukkit.craftbukkit.v1_7_R3.CraftServer.loadPlugin(CraftServer.java:455)
at org.bukkit.craftbukkit.v1_7_R3.CraftServer.enablePlugins(CraftServer.java:389)
at org.bukkit.craftbukkit.v1_7_R3.CraftServer.reload(CraftServer.java:839)
at org.bukkit.Bukkit.reload(Bukkit.java:303)
at org.bukkit.command.defaults.ReloadCommand.execute(ReloadCommand.java:23)
at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:180)
at org.bukkit.craftbukkit.v1_7_R3.CraftServer.dispatchCommand(CraftServer.java:740)
at org.bukkit.Bukkit.dispatchCommand(Bukkit.java:331)
at me.escapeNT.pail.Util.Util$1.run(Util.java:59)
at org.bukkit.craftbukkit.v1_7_R3.scheduler.CraftTask.run(CraftTask.java:53)
at org.bukkit.craftbukkit.v1_7_R3.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:345)
at net.minecraft.server.v1_7_R3.MinecraftServer.v(MinecraftServer.java:600)
at net.minecraft.server.v1_7_R3.DedicatedServer.v(DedicatedServer.java:260)
at net.minecraft.server.v1_7_R3.MinecraftServer.u(MinecraftServer.java:558)
at net.minecraft.server.v1_7_R3.MinecraftServer.run(MinecraftServer.java:469)
at net.minecraft.server.v1_7_R3.ThreadServerApplication.run(SourceFile:628)


There is also another error, whenever I want to build a gate, (the command is /trp design build nether)
the plugin responds with "An error has occurred. Please check the consol for details."

if anyone can help, please do so.

 

Le bump