Invalid argument supplied for foreach()

Hi there,

Thanks for the great work. There is an issue with includes/Admin.php at line 288 that throw a warning notice.

PHP Warning: Invalid argument supplied for foreach() in /wp-content/plugins/templates-patterns-collection/includes/Admin.php on line 288

Already fixed it with this code.

if ( !empty($sites) && is_array($sites) ) {
            foreach ( $sites as $builder => $sites_for_builder ) {
                foreach ( $sites_for_builder as $slug => $data ) {
                    $sites[ $builder ][ $slug ]['slug'] = $slug;
                    if ( ! isset( $data['upsell'] ) || $data['upsell'] !== true ) {
                        continue;
                    }
                    $sites[ $builder ][ $slug ]['utmOutboundLink'] = add_query_arg(
                        apply_filters(
                            'ti_onboarding_outbound_query_args',
                            array(
                                'utm_medium'   => 'about-' . get_template(),
                                'utm_source'   => $slug,
                                'utm_campaign' => 'siteslibrary',
                            )
                        ),
                        $theme_support['pro_link']
                    );
                }
            }
	    }

Hope this will fix it in the next updates.

Thanks.