fledge007

Hello I have finally installed Rank Math on to my website. However, I received these two error messages: Warning: call_user_func_array() expects parameter 1 to be a valid callback, function 'wpfresh4_filter_robots' not found or invalid function name in /home3/fledge007/public_html/wp-includes/class-wp-hook.php on line 286 Warning: Cannot modify header information - headers already sent by (output started at /home3/fledge007/public_html/wp-includes/class-wp-hook.php:286) in /home3/fledge007/public_html/wp-admin/includes/misc.php on line 1126 My site is hosted by Hostgator Wordpress ver: 4.9.8 The site is in an early stage of setup. The plugins that are installed: Akismet Anti-Spam Contact Form 7 Easy Digital Downloads InstaBuilder 2.0 (Activated) MailOptin - Lite MailPoet 3 Mesmerize Companion (Activated) Goes with the Mesmerize theme One Click Demo Import (Activated) Rank Math SEO (Activated) ThirstyAffiliates UpdraftPlus - Backup/Restore W3 Total Cache Webcraftic Clearfy WP Freshstart 4 (Activated) WP-Optimize WPForms Lite Most of these plugins are installed for test purposes only. Thank You, James Plunkett