I am getting the following error sporadically on our portal. I looked com.sap.portal.runtime.logon.par.bak, logon_proxy.txt was there.
The error is coming when we logon to portal and log out of portal
http://servername:5xxxx/irj
Portal Runtime Error
An exception occurred while processing a request for :
iView : com.sap.portal.runtime.logon.default
Component Name : com.sap.portal.runtime.logon.default
File logon_proxy.txt cannot be found.
Exception id: 02:22_25/09/07_0008_1365250
See the details for the exception ID in the log file
Thanks for your help !