Unable to edit articles in Editor mode. Looks like its protected.

Can you expand on this explanation and post a screenshot?

Here is a screenshot, its a gray editor, not working to click into it.

Please send me a login - https://www.joomlacontenteditor.net/contact/site-login

Sent!

PLZ inform me back on what to do on my other sites.

I'm not seeing any issue on your site. All the articles I checked are able to be edited, although the background color of some - which reflexts the background colour of the front-end site - does make editing a little more difficult.

Is the background color the issue you are trying to solve, or is there a particular article you are having a problem with?

Still having the issue when I start a new article. I tried to paste the text in, and this work, but can not edit the text after.

Also tried to use another account.

The issue is caused by one of the unset rules in the template's user.css file, which is affecting the cursor display in the editor:

*:where(:not(iframe, canvas, img, svg, video):not(svg *)) {

  all: unset;

  display: revert;

}

JCE Pro 2.9.36 now includes an user.css file in the Cassiopeia template, to more accurately style content as it would appear in the front-end.

Either remove those "unset" override styles, or in the Editor Global Configuration, set Editor Styles to Custom CSS Files, then in the Custom CSS Files field, add:

media/templates/site/cassiopeia/css/template.min.css

Still not working, I removed the CSS as above, and added the Custom CSS styles in Configuration.

and added the Custom CSS styles in Configuration.

You didn't set the Editor Styles option to Custom CSS Files.

I have done this on your site, and the editor is now only using the template.min.css file for styling.

THX Now it works.