I have 3 php installations on one server, each serving a different domains.
Suddenly all the ckeditors in each of them are gone - well, the plugin is still on with the green tick mark in the plugins configuration page and the common plugins states that it is current. Here is some information that may help someone help me troubleshoot this:
Name CKEditor plugin
Description Provides the CKEditor for editing messages and templates.
version 2.1.3+20160603Update status Plugin must be updated manually
More information Documentation Page Configure CKEditor Settings
Name Common Plugin Developer bramley
Description Provides support classes required by some other plugins.
version3.9.0+20180905 Update status Plugin is up-to-date
More information Documentation Page
Fckeditor works, not ckeditor.
All directories have proper permissions and ownership.