Fatal error: Uncaught TypeError: call_user_func_array(): Argument #1 ($callback) must be a valid callback, class NMBTC\Core\ST_ActionsSet does not have a method "headTrackingScripts" in /home/site/wwwroot/wp-includes/class-wp-hook.php:324 Stack trace: #0 /home/site/wwwroot/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters('', Array) #1 /home/site/wwwroot/wp-includes/plugin.php(517): WP_Hook->do_action(Array) #2 /home/site/wwwroot/wp-content/themes/nmbtc/header-landing.php(64): do_action('head_tracking_s...') #3 /home/site/wwwroot/wp-includes/template.php(810): require_once('/home/site/wwwr...') #4 /home/site/wwwroot/wp-includes/template.php(745): load_template('/home/site/wwwr...', true, Array) #5 /home/site/wwwroot/wp-includes/general-template.php(48): locate_template(Array, true, true, Array) #6 /home/site/wwwroot/wp-content/themes/nmbtc/templates/modules-template.php(17): get_header('landing') #7 /home/site/wwwroot/wp-includes/template-loader.php(106): include('/home/site/wwwr...') #8 /home/site/wwwroot/wp-blog-header.php(19): require_once('/home/site/wwwr...') #9 /home/site/wwwroot/index.php(17): require('/home/site/wwwr...') #10 {main} thrown in /home/site/wwwroot/wp-includes/class-wp-hook.php on line 324