User Role Editor Pro version 4.58.1 was pulished at November 30th, 2020. It’s the bug fix release.
Changes List
- Fix: Edit posts/pages access add-on: Error message was fixed: Uncaught Error: Object of class stdClass could not be converted to string in /wp-content/plugins/user-role-editor-pro/pro/includes/classes/posts-edit-access-user.php:653