Bukkit

What steps will reproduce the problem?
1.Install BarAPI and XRun
2.Restart the server
3.I try /xr setgloballobby
4. Doesn't work
5. I try /plugins
6. Is not listed

What is the expected output? What do you see instead?

What version of the product are you using?
B: ExtremeRun 1.0.0b for CB 1.7.2-R0.3

Do you have an error log of what happened?
Yes,
ERROR Could not load 'plugins/XRun.jar' in folder 'plugins'
[Informatie] org.bukkit.plugin.InvalidPluginException: java.lang.IllegalArgumentException: Plugin already initialized!
[Informatie] at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:137) ~[cbbeta1.7.2.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
[Informatie] at org.bukkit.plugin.SimplePluginManager.loadPlugin(SimplePluginManager.java:313) ~[cbbeta1.7.2.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
[Informatie] at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:236) [cbbeta1.7.2.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
[Informatie] at org.bukkit.craftbukkit.v1_7_R1.CraftServer.loadPlugins(CraftServer.java:350) [cbbeta1.7.2.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
[Informatie] at org.bukkit.craftbukkit.v1_7_R1.CraftServer.reload(CraftServer.java:771) [cbbeta1.7.2.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
[Informatie] at org.bukkit.Bukkit.reload(Bukkit.java:279) [cbbeta1.7.2.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
[Informatie] at org.bukkit.command.defaults.ReloadCommand.execute(ReloadCommand.java:23) [cbbeta1.7.2.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
[Informatie] at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:175) [cbbeta1.7.2.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
[Informatie] at org.bukkit.craftbukkit.v1_7_R1.CraftServer.dispatchCommand(CraftServer.java:683) [cbbeta1.7.2.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]

Please provide any additional information below.

Same as #2 I think