Update: I added the WP_DEBUG_DISPLAY to the wp-config.php file, still seeing the error message, plus this:

Warning: Undefined variable $data_sort_atts_output in /srv/users/xxxx/apps/xxxx/public/wp-content/plugins/poka-review/public/templates/shortcode-pokareview_tablelistv2.php on line 129

Not sure what you mean by “also”, this is what it says in the wp-config.php file:

“if ( ! defined( ‘WP_DEBUG’ ) ) {
define( ‘WP_DEBUG’, false );
}”

Isn’t that the default mode?

I haven’t changed the wp-config.php file, it has been on ‘false’ the entire time, still receiving the error message as seen in my original post.