After moving to a new server I tried to reactivate all my plugins one by one but Contact Form 7 fails with fatal error:
Fatal error: Cannot redeclare wpcf7_contact_form_default_pack() (previously declared in /wp-content/plugins/contact-form-7/includes/deprecated.php:20) in /wp-content/plugins/contact-form-7/includes/classes.php on line 743
Any one have any ideas?