Fatal error: Cannot redeclare add_user()
Can anyone help with this error code. It has just started after a user tries to update their profile.
Fatal error: Cannot redeclare add_user() (previously declared in /home/savemar/public_html/wp
-admin/includes/user.php:17) in /home/savemar/public_html/wp
-admin/includes/user.php on line 18
Im running wordpress 3.9.3 with classipress theme. Ive also tried to deactivate plugins with no luck.
url is www.savemari.com