As @Nathan Explosion (I like your new profile photo btw, Nathan, hope things are going well), if the editor is failing to load this would indicate that the plugin that was installed is causing an issue. It maybe there is a dependency missing, the plugin isn't compatible, or in some odd cases, you may be attempting to overwrite a plugin already in use. Ultimately, there should be a browser console error pointing out what is happening (or an error in general pointing to the plugin.js file).