We use Jira on demand with the harvest plugin. If I'm in the issue view and try to click on the button "Track Time" I get this error:

    Unable to load plugin content. Please try again later.
    error: Internal Server Error

There is already a question in Answers, but no answer: https://answers.atlassian.com/questions/248663/harvest-error-unable-to-load-plugin-content-please-try-again-later-error-internal-server-error

Is this a Jira problem or a problem of the plugin or a harvest problem? Can I do something so that it works again?

Best!
Stefan