Fatal error: Uncaught Error: Call to undefined function tutor_get_all_active_payment_gateways() in /var/www/vhosts/sentinel.academy/httpdocs/wp-content/plugins/tutor/templates/ecommerce/checkout.php:100 Stack trace: #0 /var/www/vhosts/sentinel.academy/httpdocs/wp-content/plugins/tutor/includes/tutor-template-functions.php(130): include() #1 /var/www/vhosts/sentinel.academy/httpdocs/wp-content/plugins/tutor/classes/Shortcode.php(496): tutor_load_template() #2 /var/www/vhosts/sentinel.academy/httpdocs/wp-content/plugins/tutor/classes/Template.php(306): TUTOR\Shortcode->tutor_checkout_page() #3 /var/www/vhosts/sentinel.academy/httpdocs/wp-includes/class-wp-hook.php(324): TUTOR\Template->convert_static_page_to_template() #4 /var/www/vhosts/sentinel.academy/httpdocs/wp-includes/plugin.php(205): WP_Hook->apply_filters() #5 /var/www/vhosts/sentinel.academy/httpdocs/wp-includes/formatting.php(3974): apply_filters() #6 /var/www/vhosts/sentinel.academy/httpdocs/wp-includes/class-wp-hook.php(324): wp_trim_excerpt() #7 /var/www/vhost in /var/www/vhosts/sentinel.academy/httpdocs/wp-content/plugins/tutor/templates/ecommerce/checkout.php on line 100