PHP Warning: Parameter 2 to wp_hide_post_Public::query_posts_join() expected to be a reference, value given in /home3/henryoko/public_html/regencyinternationalclinicco/wp-includes/class-wp-hook.php on line 287 code example

Example: warning: parameter 2 to search_by_title() expected to be a reference, value given inwp-includes\class-wp-hook.php on line 287

#PHP 7.1 doesn’t like & in front of $query parameters in functions.
#If the problem is due a plugin search the & and remove it