After the JIRA Agile installation, the JIRA Agile module appears under Administration but when attempting to click on JIRA Agile License, the page displays a stacktrace with 404 error.
Screenshot of the problem:
The following stacktrace appears in the log file:
You had disabled several modules in the JIRA Agile plugin. You can locate this via Administration > System > Plugins > JIRA Agile.
Enable all the modules under JIRA Agile via Administration > System > Plugins