Fatal error: Uncaught Error: Call to undefined function add_filter() in /home/wtsnake/public_html/wtsnake/wp-content/themes/astra/inc/compatibility/class-astra-yoast-seo.php:19 Stack trace: #0 /home/wtsnake/public_html/wtsnake/wp-content/themes/astra/inc/compatibility/class-astra-yoast-seo.php(38): Astra_Yoast_SEO->__construct() #1 {main} thrown in /home/wtsnake/public_html/wtsnake/wp-content/themes/astra/inc/compatibility/class-astra-yoast-seo.php on line 19