[23-Mar-2023 07:50:09 UTC] PHP Warning Cannot modify header information – headers already sent by (output started at /home/garudashopgaruda/public_html/ga/wp-content/plugins/dc-woocommerce-multi-vendor/classes/emails/class-mvx-email-vendor-new-coupon-followed-customer.php:1) in /home/garudashopgaruda/public_html/ga/wp-includes/rest-api/class-wp-rest-server.php on line 1752