Error on logging into xwiki.org site..

Getting the following on our xwiki.org hosted wiki... is it a general problem? HTTP Status 500 - _____ type Exception report message description The server encountered an internal error () that prevented it from fulfilling this request. exception javax.servlet.ServletException: Error number 3201 in 3: Exception while saving document XWiki.XWikiPreferences Wrapped Exception: Error number 3212 in 3: Exception while loading archive XWiki.XWikiPreferences Wrapped Exception: Error number 3003 in 3: Exception while manipulating the archive for doc XWiki.XWikiPreferences Wrapped Exception: null org.apache.struts.action.RequestProcessor.processException(RequestProcessor.java:535) org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:433) org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236) org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196) org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414) javax.servlet.http.HttpServlet.service(HttpServlet.java:689) javax.servlet.http.HttpServlet.service(HttpServlet.java:802) com.xpn.xwiki.web.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:121) root cause com.xpn.xwiki.XWikiException: Error number 3201 in 3: Exception while saving document XWiki.XWikiPreferences Wrapped Exception: Error number 3212 in 3: Exception while loading archive XWiki.XWikiPreferences Wrapped Exception: Error number 3003 in 3: Exception while manipulating the archive for doc XWiki.XWikiPreferences Wrapped Exception: null com.xpn.xwiki.store.XWikiHibernateStore.saveXWikiDoc(XWikiHibernateStore.java:314) com.xpn.xwiki.store.XWikiCacheStore.saveXWikiDoc(XWikiCacheStore.java:100) com.xpn.xwiki.store.XWikiCacheStore.saveXWikiDoc(XWikiCacheStore.java:94) com.xpn.xwiki.XWiki.saveDocument(XWiki.java:890) com.xpn.xwiki.XWiki.getPrefsClass(XWiki.java:2286) com.xpn.xwiki.XWiki.updateDatabase(XWiki.java:349) com.xpn.xwiki.XWiki.updateDatabase(XWiki.java:328) com.xpn.xwiki.XWiki.getXWiki(XWiki.java:444) com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:96) org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431) org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236) org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196) org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414) javax.servlet.http.HttpServlet.service(HttpServlet.java:689) javax.servlet.http.HttpServlet.service(HttpServlet.java:802) com.xpn.xwiki.web.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:121) note The full stack trace of the root cause is available in the Apache Tomcat/5.5.17 logs. _____ Apache Tomcat/5.5.17