There were corrupted data in the temporary files, corrupted data could be caused by improper shutdowns of the tomcat server, when this occur the data of the temporary files become corrupted and it prevent the server to start over again correctly. This issue also occurs after manually editing portal-log4j-ext.xml to increase/decrease log level.
Delete the contents of the temporary files and restart the services.
1. Access the server and locate the installation folder of USS.
2. Ensure that the USS services are shutdown.
3. Locate the following directory and delete the contents of it.
4. Start the USS service and wait for a couple of minutes until the server is running completely.
5) Restart the USS service and wait for a couple of minutes until the server is running completely.