Fatal error: Uncaught Error: Call to undefined function wp_is_serving_rest_request() in /var/www/u0446665/public_html/diktor-karpov.ru/wp-content/plugins/contact-form-7/includes/submission.php:54
Stack trace:
#0 /var/www/u0446665/public_html/diktor-karpov.ru/wp-content/plugins/contact-form-7/includes/controller.php(17): WPCF7_Submission::is_restful()
#1 /var/www/u0446665/public_html/diktor-karpov.ru/wp-includes/class-wp-hook.php(285): wpcf7_control_init()
#2 /var/www/u0446665/public_html/diktor-karpov.ru/wp-includes/class-wp-hook.php(311): WP_Hook->apply_filters(NULL, Array)
#3 /var/www/u0446665/public_html/diktor-karpov.ru/wp-includes/plugin.php(544): WP_Hook->do_action(Array)
#4 /var/www/u0446665/public_html/diktor-karpov.ru/wp-includes/class-wp.php(388): do_action_ref_array('parse_request', Array)
#5 /var/www/u0446665/public_html/diktor-karpov.ru/wp-includes/class-wp.php(735): WP->parse_request('')
#6 /var/www/u0446665/public_html/diktor-karpov.ru/wp-includes/functions.php(1274): WP->main('')
#7 /var/www/u0446665/publi in /var/www/u0446665/public_html/diktor-karpov.ru/wp-content/plugins/contact-form-7/includes/submission.php on line 54