Linking plugin with {add-page} macro is disabled at start-up

The linking plugin failed to start on Extranet with the following exception. This prevents the

macro from working, among other things.

2009-04-08 03:34:28,410 ERROR [main] [com.atlassian.plugin.DefaultPluginManager] enablePluginModules There was an error loading the descriptor 'Linking Intercom Startup' of plugin 'net.customware.confluence.plugin.linking'. Disabling.
java.lang.IllegalStateException: Bundle is uninstalled
at org.apache.felix.framework.Felix.loadBundleClass(Felix.java:1487)
at org.apache.felix.framework.BundleImpl.loadClass(BundleImpl.java:358)
at com.atlassian.plugin.osgi.factory.BundleClassLoaderAccessor.loadClass(BundleClassLoaderAccessor.java:32)
at com.atlassian.plugin.osgi.factory.OsgiPlugin.loadClass(OsgiPlugin.java:72)
at org.randombits.confluence.intercom.LocalIntercom4.findRemoteIntercom(LocalIntercom4.java:267)
at org.randombits.confluence.intercom.LocalIntercom4.getRemoteIntercoms(LocalIntercom4.java:253)
at org.randombits.confluence.intercom.LocalIntercom4.enable(LocalIntercom4.java:305)
at org.randombits.confluence.intercom.IntercomStartup.enabled(IntercomStartup.java:84)
at com.atlassian.confluence.plugin.module.PluginModuleHolder.enabled(PluginModuleHolder.java:70)
at com.atlassian.confluence.plugin.descriptor.ListenerModuleDescriptor.enabled(ListenerModuleDescriptor.java:29)
at com.atlassian.plugin.DefaultPluginManager.notifyModuleEnabled(DefaultPluginManager.java:1018)
at com.atlassian.confluence.plugin.ConfluencePluginManager.notifyModuleEnabled(ConfluencePluginManager.java:114)
at com.atlassian.plugin.DefaultPluginManager.enablePluginModules(DefaultPluginManager.java:846)
at com.atlassian.plugin.DefaultPluginManager.addPlugins(DefaultPluginManager.java:435)
at com.atlassian.plugin.DefaultPluginManager.init(DefaultPluginManager.java:121)
at com.atlassian.confluence.plugin.ConfluencePluginManager.init(ConfluencePluginManager.java:162)
at com.atlassian.confluence.plugin.ConfluencePluginManager.processConfluenceReadyEvent(ConfluencePluginManager.java:271)
at com.atlassian.confluence.plugin.ConfluencePluginManager.onApplicationEvent(ConfluencePluginManager.java:176)