Please help with this ERROR

Hello all,

Was running fine for the last week but then after a restart of the server this error appeared:

2006.07.14 11:26:56 [org.jivesoftware.wildfire.event.GroupEventDispatcher.dispatchEvent(GroupEventD ispatcher.java:142)

]

java.lang.NullPointerException: JID cannot be null

at org.xmpp.packet.JID.(JID.java:214)

at org.jivesoftware.wildfire.roster.RosterManager.adminRemoved(RosterManager.java: 457)

at org.jivesoftware.wildfire.event.GroupEventDispatcher.dispatchEvent(GroupEventDi spatcher.java:130)

at org.jivesoftware.wildfire.group.Group$MemberCollection.add(Group.java:409)

at org.jivesoftware.wildfire.admin.group_002dedit_jsp._jspService(group_002dedit_j sp.java:223)

at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)

at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:428)

at org.mortbay.jetty.servlet.WebApplicationHandler$CachedChain.doFilter(WebApplica tionHandler.java:830)

at com.opensymphony.module.sitemesh.filter.PageFilter.parsePage(PageFilter.java:11 8)

at com.opensymphony.module.sitemesh.filter.PageFilter.doFilter(PageFilter.java:52)

at org.mortbay.jetty.servlet.WebApplicationHandler$CachedChain.doFilter(WebApplica tionHandler.java:821)

at org.jivesoftware.util.LocaleFilter.doFilter(LocaleFilter.java:65)

at org.mortbay.jetty.servlet.WebApplicationHandler$CachedChain.doFilter(WebApplica tionHandler.java:821)

at org.jivesoftware.util.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingF ilter.java:41)

at org.mortbay.jetty.servlet.WebApplicationHandler$CachedChain.doFilter(WebApplica tionHandler.java:821)

at org.jivesoftware.admin.PluginFilter.doFilter(PluginFilter.java:69)

at org.mortbay.jetty.servlet.WebApplicationHandler$CachedChain.doFilter(WebApplica tionHandler.java:821)

at org.jivesoftware.admin.AuthCheckFilter.doFilter(AuthCheckFilter.java:98)

at org.mortbay.jetty.servlet.WebApplicationHandler$CachedChain.doFilter(WebApplica tionHandler.java:821)

at org.mortbay.jetty.servlet.WebApplicationHandler.dispatch(WebApplicationHandler. java:471)

at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:568)

at org.mortbay.http.HttpContext.handle(HttpContext.java:1530)

at org.mortbay.jetty.servlet.WebApplicationContext.handle(WebApplicationContext.ja va:633)

at org.mortbay.http.HttpContext.handle(HttpContext.java:1482)

at org.mortbay.http.HttpServer.service(HttpServer.java:909)

at org.mortbay.http.HttpConnection.service(HttpConnection.java:816)

at org.mortbay.http.HttpConnection.handleNext(HttpConnection.java:982)

at org.mortbay.http.HttpConnection.handle(HttpConnection.java:833)

at org.mortbay.http.SocketListener.handleConnection(SocketListener.java:244)

at org.mortbay.util.ThreadedServer.handle(ThreadedServer.java:357)

at org.mortbay.util.ThreadPool$PoolThread.run(ThreadPool.java:534)

2006.07.14 11:27:05 [org.jivesoftware.wildfire.event.GroupEventDispatcher.dispatchEvent(GroupEventD ispatcher.java:142)

]

Thanks in advanceā€¦