HTTP Status 500 when access SD+ by Blackberry

Hi all,
I have a problem with mobile browser.
When i try to access it by Corporate blackberry, i will got HTTP Status 500.

My company use BES Service and not block anything from BES.
Is there someone have this kind of problem before?

Below is error message.
----------------------------------------------------------------

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
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:116)
org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:75)
root cause

java.lang.NullPointerException
com.adventnet.servicedesk.query.util.HdSelectQueryUtil.getRestrictionRoleCriteria(HdSelectQueryUtil.java:2792)
com.adventnet.servicedesk.query.util.HdSelectQueryUtil.getSelectQuery(HdSelectQueryUtil.java:1401)
com.adventnet.servicedesk.utils.WorkOrderUtil.getSelectQuery(WorkOrderUtil.java:6130)
com.adventnet.servicedesk.utils.WorkOrderUtil.getSelectQuery(WorkOrderUtil.java:5940)
com.adventnet.servicedesk.utils.WorkOrderUtil.getSelectQuery(WorkOrderUtil.java:5935)
com.adventnet.servicedesk.mobileclient.workorder.util.WorkOrderMCUtil.getMCReqListViewDO(WorkOrderMCUtil.java:77)
com.adventnet.servicedesk.mobileclient.workorder.action.WorkOrderMCListAction.execute(WorkOrderMCListAction.java:349)
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:116)
org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:75)
note The full stack trace of the root cause is available in the - logs.