<?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.', 'cf7mls' ); ?></strong>
    </p>
</div>
<?php
			if ( isset( $_GET['activate'] ) ) {
				unset( $_GET['activate'] );
			}
		}
	}
);