Fatal error: Uncaught Error: Interface "GuzzleHttp\Promise\PromiseInterface" not found in /home/rwebserver/public_html/rweb/vendor/guzzlehttp/promises/src/Promise.php:14
Stack trace:
#0 {main}
thrown in /home/rwebserver/public_html/rweb/vendor/guzzlehttp/promises/src/Promise.php on line 14