Problem z contact form w WP. Opcje

[horiz0n]

Witam,
Zajmuje sie serwerem od strony administracyjnej itp. Zewnetrzena agencja opeikuajca sie strona oparta o WP zglosila problem z niedzialajacym formularzem kontaktowym, w logach widze:

Kod

[30-Sep-2017 14:01:23 UTC] PHP Fatal error:  Uncaught Error: Call to a member function get_status() on null in /var/www/html/wp-content/plugins/contact-form-7/includes/contact-form.php:656
Stack trace:
#0 /var/www/html/wp-content/plugins/contact-form-7/includes/rest-api.php(280): WPCF7_ContactForm->submit()
#1 /var/www/html/wp-includes/rest-api/class-wp-rest-server.php(947): wpcf7_rest_create_feedback(Object(WP_REST_Request))
#2 /var/www/html/wp-includes/rest-api/class-wp-rest-server.php(329): WP_REST_Server->dispatch(Object(WP_REST_Request))
#3 /var/www/html/wp-includes/rest-api.php(271): WP_REST_Server->serve_request('/contact-form-7...')
#4 /var/www/html/wp-includes/class-wp-hook.php(298): rest_api_loaded(Object(WP))
#5 /var/www/html/wp-includes/class-wp-hook.php(323): WP_Hook->apply_filters('', Array)
#6 /var/www/html/wp-includes/plugin.php(515): WP_Hook->do_action(Array)
#7 /var/www/html/wp-includes/class-wp.php(386): do_action_ref_array('parse_request', Array)
#8 /var/www/html/wp-includes/class-wp.php(733): WP->parse_request('')
#9 /var/www/html/w in /var/www/html/wp-content/plugins/contact-form-7/includes/contact-form.php on line 656

Podejrzewam, ze cos zmienili. Czy ktos moze mi pomoc z rozszyfrowaniem w/w komunikatu?