Errors after upgrading to Splunk ES 6.0

Hi, I've just upgraded to Splunk 6.0, but I have encountered some problems. Some of the dashbaords won't load anymore, namely the "Incident Review" and "Investigations" dashboards. When I try to open the "Incident Review" dashboard I get an error `No module named http.client`, and also I have an error that says `Unable to initialize modular input "whois" defined inside the app "SA-NetworkProtection"`. We tested this extact same upgrade in a test environment first, and it worked fine ([kind of][1]), but when we do the same install in production we get these errors. Any ideas on what might be the problem? [1]: https://answers.splunk.com/answers/786660/error-when-upgrading-to-splunk-enterprise-security.html