forgerock openam console error "HTTP Status 500 – Internal Server Error" resovled

HTTP Status 500 – Internal Server Error

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Type Exception Report
Message An error occurred while processing this request. Contact your administrator.
Description The server encountered an unexpected condition that prevented it from fulfilling the request.
Exception

javax.servlet.ServletException: An error occurred while processing this request. Contact your administrator.
 com.sun.identity.setup.AMSetupFilter.doFilter(AMSetupFilter.java:148)
 org.forgerock.openam.audit.context.AuditContextFilter.doFilter(AuditContextFilter.java:46)

Note The full stack trace of the root cause is available in the server logs.

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Apache Tomcat/9.0.21

  Caution: below step will delete your configuration. Make sure you copy the original file. If you delete this mistake. This file only have location of your amConfiguration file, you can recreate file and include configuration file path

 Solution:

Go to users home directory and see the hidden file

there should be a file .openamcfg remove that file and restart the tomcat. 

rm .openamcfg/

after starting the Tomcat you should be able to see the openam console, it will require you to reconfigure the openam