Fatal error: Uncaught Error: Interface "GuzzleHttp\Promise\PromisorInterface" not found in /var/www/html/subscribe.wavveboating.com/vendor/guzzlehttp/promises 2/src/EachPromise.php:9 Stack trace: #0 {main} thrown in /var/www/html/subscribe.wavveboating.com/vendor/guzzlehttp/promises 2/src/EachPromise.php on line 9