I have a Joomla installation which is on 3.6.5 and working on upgrading to 3.7. While carrying out a test upgrade on a dev version of the site, I got presented with an error about the contenthistory component not being found, when editing an article. Here it is:
So I went back to my 3.6.5 installation, which doesn't display any error on articles, and clicked on the "Versions" button, to find an error there too "Component not found". Here it is:
So I don't know how long this has been broken for, since I don't make use of old versions very often, but need to get this fixed. Can anyone suggest what might have gone wrong? What to look for? And how to fix it?