We are getting the error like this
12/06/2015 14:42:35 HTTP JVM: CLFAD0211E: Exception thrown. For more detailed information, please consult error-log-0.xml located in F:/Lotus/Domino/data/domino/workspace/logs
12/06/2015 14:42:35 HTTP JVM: CLFAD0246E: Exception occurred servicing request for: /xsp/.ibmxspres/domino/ckeditor/ckeditor.js - HTTP Code: 500. For more detailed information, please consult error-log-0.xml located in F:/Lotus/Domino/data/domino/workspace/logs
12/06/2015 14:42:36 HTTP JVM: CLFAD0211E: Exception thrown. For more detailed information, please consult error-log-0.xml located in F:/Lotus/Domino/data/domino/workspace/logs
12/06/2015 14:42:36 HTTP JVM: CLFAD0246E: Exception occurred servicing request for: /xsp/.ibmxspres/domino/ckeditor/skins/lotus21/editor.css - HTTP Code: 500. For more detailed information, please consult error-log-0.xml located in F:/Lotus/Domino/data/domino/workspace/logs
or
12/06/2015 16:22:37 HTTP JVM: CLFAD0211E: Exception thrown. For more detailed information, please consult error-log-0.xml located in F:/Lotus/Domino/data/domino/workspace/logs
12/06/2015 16:22:37 HTTP JVM: CLFAD0246E: Exception occurred servicing request for: /ASAP/helpdesk2000.nsf/xpASAPRequest.xsp - HTTP Code: 500. For more detailed information, please consult error-log-0.xml located in F:/Lotus/Domino/data/domino/workspace/logs
12/06/2015 16:22:38 HTTP Web Server: Command Not Handled Exception [/path/db.nsf/xpage.xsp?documentId=BE7D455563ECAD9DC1257E5F0031A703&action=editDocument&viewname=abc&$$ajaxid=view%3A_id1%3AidAssignTo] CN=user name/OU=OrgUnit../OU=OrgUnit../OU=OrgUnit../O=Org..
This does not happen always but happens 6 to 8 times every day. Please help to identify the reason and how to rectify.
An error 500 points at some server logic failing. In your case this could be some SSJS (Serverside JavaScript) or Java that fails. Your first step in identifying the problem is to have a look at the error logs as stated in the message. That can be a little tedious to get to as these files sit in the file system on the server.
However, there is an OpenNTF project to help you! It is called "OpenNTF Log File Reader". Follow this link where you will find a short video about it - and a download link ;-)
Once you identified the code that throws the error you have many different options for identifying the issue ranging from adding a "print" statement to doing a remote debug (which you should only do on a development server though).
/John