Fatal error: Uncaught Error: Interface 'Depicter\GuzzleHttp\Promise\PromisorInterface' not found in /var/www/courses.riftvalley.net/wordpress/wp-content/plugins/depicter/modules/GuzzleHttp/Pool.php:24 Stack trace: #0 {main} thrown in /var/www/courses.riftvalley.net/wordpress/wp-content/plugins/depicter/modules/GuzzleHttp/Pool.php on line 24