What does the Notice: Trying to get property of non-object error mean?

Question

WordPress

How can I fix Notice: Trying to get property of non-object in /home/svet2/site.ru/wp-admin/includes/class-wp-media-list-table.php

Answer 1

Enable debug mode via wp-config.php and see which plugin might be causing the error.
Or disable all plugins and enable them one by one until the problem reoccurs. The last included plugin will be the culprit. Do the same with the theme. Enable the default theme twenty.... And then check the logs for this error. Also update the plugins, maybe the problem is fixed in newer versions
And so a quick search gave the following - https://wordpress.org/support/topic/error-on-post-...