Image locker not responding when edit post

in edit post mode, the image locker is grayed out and does nothing when clicked.

Screenshot 2022-11-17 at 00.14.26

Any Javascript errors appearing in console?

yes, I see this

POST 500
| --- | --- | --- | --- |

Your WP site does not seem to be loading core WP JS scripts properly. They are getting a 500 error. You need to check what is happening at your site and fix that error. That error would affect not only this plugin, but other plugins and WP functions.