epilati

@wpdevart Sure. The plugin is the ACF https://ww.wp.xz.cn/plugins/advanced-custom-fields/. The error message show up when I try to edit any content page (post.php).

For instance, this first image bellow is the error message in the contact page, even if I don’t have the organization chart block on the page, the error message shows up:

This second image bellow is the error in the console log:

As you can see, in the image bellow, the declaration is done two times, but I’m not sure if this is the problem.

The error message does not make it impossible to use the Organization Chart plugin, but it is very annoying, because I have to close the message every time I want to edit a content page.