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Recently we upgraded from 11i to R1213 on Linux 64bit,I assume that the upgrade was completed successfully with no errors.
Due to some issue we regularly receving 500 Internal Server Error, raised SR with Oracle, they thought it may be issue with GUEST user password and provided below mentioned acionplaPlease check Apache log file for details about the error.
When trying login URL using SYSADMIN, it throws below error, nothing is working now, and Oracle still unable to find what is causeDid AutoConfig complete successfully?
Login failed. Please verify your login information or contact the system administrator.
Can you reproduce the issue with other application users?
Can you find any errors in the database log file?
What is the status of the SYSADMIN user? Please make sure that the user is active (not end-dated) and the password is correct.
Please review these docs.
The Existing User Login failed error After Assign Any Responsiblity [ID 1127799.1]
Unable to Login to Application After Cloning to A New Node [ID 1102253.1]
Http 500 : Internal Server Error When Login To A New Cloned Environment [ID 781413.1]
R12: Troubleshooting 500 Internal Server Error in Oracle E-Business suite [ID 813523.1]
500 Internal Server Error - java.lang.NoClassDefFoundError on Login [ID 761869.1]
Login Fails After Changing The 'GUEST' Password To Either Mixed / Lowercase In R12 [ID 602425.1]
Blank Page Accessing R12 - Application.log shows "html: chain failed", "Could not initialize class oracle.apps.fnd.common.Guest" [ID 1197917.1]
Thnaks for help,
issue resolved after regeneration jar files from adadmin with force