[Resolved] Fatal error after installing plugin
Each time after I install Yoast, my browser displays following message when I try to access any page from my website :
Fatal error: Call to undefined method WP_Query::is_main_query() in /homez.429/christine/www/wp-content/plugins/wordpress-seo/frontend/class-frontend.php on line 518
Any idea how I can solve this problem ?
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