Fatal error: Uncaught Error: Call to undefined function wp_is_serving_rest_request()
in /home/floran5/public_html/dadapaguilar/wp-content/plugins/contact-form-7/includes/submission.php on line 54

Call stack:

1. WPCF7_Submission::is_restful()
   wp-content/plugins/contact-form-7/includes/controller.php:17
2. wpcf7_control_init()
   wp-includes/class-wp-hook.php:322
3. WP_Hook::apply_filters()
   wp-includes/class-wp-hook.php:348
4. WP_Hook::do_action()
   wp-includes/plugin.php:565
5. do_action_ref_array()
   wp-includes/class-wp.php:418
6. WP::parse_request()
   wp-includes/class-wp.php:813
7. WP::main()
   wp-includes/functions.php:1336
8. wp()
   wp-blog-header.php:16
9. require()
   index.php:17