Editor Encountered Unexpected Error

I’m not seeing the same issue, have you tried ensuring you’ve got no old data cached in your browser? (How to clear local caches for various browsers).

If that does not help resolve the issue, then this may be a plugin or theme conflict. Please attempt to disable all plugins, and use one of the default (Twenty*) themes. If the problem goes away, enable them one by one to identify the source of your troubles.

If you can install plugins, install “Health Check”: https://wordpress.org/plugins/health-check/ On the troubleshooting tab, you can click the button to disable all plugins and change the theme for you, while you’re still logged in, without affecting normal visitors to your site.

You are welcome 🙂