Fatal error: Uncaught Error: Interface "GuzzleHttp\Promise\PromisorInterface" not found in /home/trombino/public_html/africa.trombino.org/vendor_new/guzzlehttp/guzzle/src/Pool.php:19 Stack trace: #0 {main} thrown in /home/trombino/public_html/africa.trombino.org/vendor_new/guzzlehttp/guzzle/src/Pool.php on line 19