Contact Form 7 issue

I start having an issue with the Contact Form. The form stopped working and sometimes I’m getting the following error:

Fatal error: Call to a member function get_permalink() on a non-object in /home/artslevin/public_html/wp-content/plugins/woocommerce/includes/class-wc-post-data.php on line 55

Here is the form: https://artlevin.com/contact/

Thanks for your support.