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(NULL, array)
   wp-includes/class-wp-hook.php:348
4. WP_Hook::do_action(array)
   wp-includes/plugin.php:565
5. do_action_ref_array('parse_request', 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('/home/floran5/public...r/wp-blog-header.php')
   index.php:17