Dear Sir,

I am unable to view accepted submission under MY Dspace  and It is taking 
too much time to load and display the collection and Items. Item download 
takes too much time. My server is in a proxy environment with private IP 
like 10.1*.1*.1* .
Details of software's version and log are attached below for your reference.

Please help me as soon as possible.

With Regards
Indu Bhushan
SIRC, RRCAT, Indore MP
------------------------------------------------------------
-------------------------------------------
Red Hat Enterprise Linux Server release 6.6 (Santiago)
DSpace version:  4.1
  SCM revision:  ${buildNumber} SCM branch:  UNKNOWN_BRANCH
  OS:  Linux(i386) version 2.6.18-164.el5PAE
  Applications:
         Discovery:  enabled.
         JRE:  Oracle Corporation version 1.8.0_31
         Ant version:  Apache Ant(TM) version 1.8.2 compiled on December 20 
2010
         Maven version:  3.0.5

*Log file error*
2021-09-16 07:44:18,222 ERROR 
org.dspace.statistics.SolrLoggerUsageEventListener 
@ Server at http://10.10.2.12:8080/solr/statistics returned non ok 
status:407, message:Proxy Authentication Required

2021-09-16 07:45:17,583 ERROR 
org.dspace.statistics.SolrLoggerUsageEventListener 
@ Server at http://10.10.2.12:8080/solr/statistics returned non ok 
status:503, message:Service Unavailable

2021-09-16 13:00:31,139 ERROR org.dspace.discovery.SolrServiceImpl @ 
anonymous:session_id=04E92231E1FC700EDA5A7BCDE6D132CF:ip_addr=10.130.2.145:Error
 
while retrieving DSpace object from discovery index:Handle\colon; 
123456789/5336

2021-09-20 08:40:29,496 INFO  org.dspace.app.webui.servlet.MyDSpaceServlet 
@ 
[email protected]:session_id=FCCD4CA1D4211DB999C7E313ABD54C62:ip_addr=10.130.2.145:view_own_submissions:count=3946
2021-09-20 08:40:36,111 WARN  org.dspace.content.DCDate @ Mangled date: ?  
..failed all attempts to parse as date.
2021-09-20 08:40:36,116 WARN  
org.dspace.app.webui.servlet.InternalErrorServlet @ 
:session_id=FCCD4CA1D4211DB999C7E313ABD54C62:internal_error:-- URL Was: 
http://10.10.2.12:8080/dspace/mydspace
-- Method: POST
-- Parameters were:
-- submit_own: "View Accepted Submissions"
-- step: "0"

org.apache.jasper.JasperException: java.lang.NullPointerException
        at 
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:549)
        at 
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:470)
        at 
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:395)
        at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:339)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
        at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
        at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
        at 
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
        at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
        at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
        at 
org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:748)
        at 
org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:486)
        at 
org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:411)
        at 
org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:338)
        at org.dspace.app.webui.util.JSPManager.showJSP(JSPManager.java:60)
        at 
org.dspace.app.webui.servlet.MyDSpaceServlet.showPreviousSubmissions(MyDSpaceServlet.java:795)
        at 
org.dspace.app.webui.servlet.MyDSpaceServlet.processMainPage(MyDSpaceServlet.java:185)
        at 
org.dspace.app.webui.servlet.MyDSpaceServlet.doDSPost(MyDSpaceServlet.java:94)
        at 
org.dspace.app.webui.servlet.DSpaceServlet.processRequest(DSpaceServlet.java:115)
        at 
org.dspace.app.webui.servlet.DSpaceServlet.doPost(DSpaceServlet.java:73)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:646)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)

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