when i am trying to install configuration manager plugin i am getting error

[manikanta]

18-Apr-2019 17:01:03.877 WARNING [localhost-startStop-2] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads The web application [ROOT] appears to have started a thread named [JonasClock] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:
java.lang.Thread.sleep(Native Method)
org.objectweb.jonas_timer.TimerManager.clock(TimerManager.java:142)
org.objectweb.jonas_timer.Clock.run(TimerManager.java:46)

[Dave Theodore [Coyote Creek Consulting]]

I would check to make sure that you are running a supported version of Java for the version of Jira that you are running.  Look in the "System Info" section of the admin interface to see which Java is being used.

Also, be sure that you are running a version of Configuration Manager that matches the version of Jira you are running.  The version history page has a matrix of which versions are compatible with which versions of Jira. 

Apps like this tend to complete with other similar Apps, so if you are using Project Configurator, I would uninstall it first and then install Configuration Manager.

If all that fails, open a Botron support ticket. Their support is excellent.