Error in "New message"

Hello!

When I go to page "New message" /wp-admin/admin.php?page=messaging_new, there is an error:

Notice: wp_richedit_pre is deprecated since version 4.3.0! Use format_for_editor() instead. in /home/mydomain/domains/mydomain.com/public_html/wp-includes/functions.php on line 3828

I use PHP 5.6.26 and WP 4.7.2