Fatal error: Uncaught Error: Interface 'Psr\Http\Message\ResponseInterface' not found in /var/www/courses.riftvalley.net/wordpress/wp-content/plugins/depicter/vendor/guzzlehttp/psr7/src/Response.php:13 Stack trace: #0 {main} thrown in /var/www/courses.riftvalley.net/wordpress/wp-content/plugins/depicter/vendor/guzzlehttp/psr7/src/Response.php on line 13