type Exception report

message

description The server encountered an internal error () that prevented it from fulfilling this request.

exception

javax.servlet.ServletException org.apache.struts.action.RequestProcessor.processException(RequestProcessor.java:545) org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:486) org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:274) org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482) org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:507) javax.servlet.http.HttpServlet.service(HttpServlet.java:697) javax.servlet.http.HttpServlet.service(HttpServlet.java:810) com.adventnet.servicedesk.filter.EncodingFilter.doFilter(EncodingFilter.java:162) org.tuckey.web.filters.urlrewrite.UrlRewriteFilter.doFilter(UrlRewriteFilter.java:350) com.adventnet.servicedesk.authentication.NTLMV2CredentialAssociationFilter.doFilter(NTLMV2CredentialAssociationFilter.java:34) com.adventnet.servicedesk.authentication.NTLMV2Filter.doFilter(NTLMV2Filter.java:176) org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:75) 

root cause

java.lang.NullPointerException com.adventnet.servicedesk.setup.util.AdminOperationalUtil.getQueueDefintionDO(AdminOperationalUtil.java:2409) com.adventnet.servicedesk.cmdb.action.ViewCIDetailsAction.execute(ViewCIDetailsAction.java:159) org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:484) org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:274) org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482) org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:507) javax.servlet.http.HttpServlet.service(HttpServlet.java:697) javax.servlet.http.HttpServlet.service(HttpServlet.java:810) com.adventnet.servicedesk.filter.EncodingFilter.doFilter(EncodingFilter.java:162) org.tuckey.web.filters.urlrewrite.UrlRewriteFilter.doFilter(UrlRewriteFilter.java:350) com.adventnet.servicedesk.authentication.NTLMV2CredentialAssociationFilter.doFilter(NTLMV2CredentialAssociationFilter.java:34) com.adventnet.servicedesk.authentication.NTLMV2Filter.doFilter(NTLMV2Filter.java:176) org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:75) 

note The full stack trace of the root cause is available in the - logs.

i cant delete this group, because it linked to a lot of incidents.

So, some tech specialists and its group email are blocked for management. 

how can I restore group settings?