Whenever I try to activate the plugin I get the error:
Fatal error: Call to undefined function wpcf7_admin_url() in /home/dual/public_html/wp-content/plugins/contact-form-7-campaignmonitor-addon/cf7-campaignmonitor.php on line 275
Also none of the other plugins then load?
To actually get it appear in the plugin list I have to delete line 275:
" $url = wpcf7_admin_url( array( 'page' => 'wpcf7' ) );
Obviously the plugin then doesn't work!