File Content: Fallback.php <?php defined( 'ABSPATH' ) || exit; add_action( 'admin_notices', function() { if ( current_user_can( 'activate_plugins' ) ) { ?> <div class="notice notice-error is-dismissible"> <p> <strong><?php esc_html_e( 'It looks like you have another Contact Form 7 Multi-Step version installed, please delete it before activating this new version. All of the settings and data are still preserved.', 'cf7-multi-step' ); ?></strong> </p> </div> <?php if ( isset( $_GET['activate'] ) ) { unset( $_GET['activate'] ); } } } ); Submit