Fatal error: Uncaught Error: Call to a member function using_index_permalinks() on null in /home/taxstar3/public_html/richard/wp-includes/rest-api.php:313 Stack trace: #0 /home/taxstar3/public_html/richard/wp-includes/rest-api.php(375): get_rest_url(NULL, 'contact-form-7/...', 'json') #1 /home/taxstar3/public_html/richard/wp-content/plugins/contact-form-7/includes/controller.php(58): rest_url('contact-form-7/...') #2 /home/taxstar3/public_html/richard/wp-content/plugins/contact-form-7/includes/controller.php(37): wpcf7_enqueue_scripts() #3 /home/taxstar3/public_html/richard/wp-includes/class-wp-hook.php(286): wpcf7_do_enqueue_scripts('') #4 /home/taxstar3/public_html/richard/wp-includes/class-wp-hook.php(310): WP_Hook->apply_filters(NULL, Array) #5 /home/taxstar3/public_html/richard/wp-includes/plugin.php(453): WP_Hook->do_action(Array) #6 /home/taxstar3/public_html/richard/wp-includes/script-loader.php(1435): do_action('wp_enqueue_scri...') #7 /home/taxstar3/public_html/richard/wp-content/plugins/gecka-ie-warning/gecka-i in /home/taxstar3/public_html/richard/wp-includes/rest-api.php on line 313