Fatal error: Uncaught Error: Interface "GuzzleHttp\Promise\PromiseInterface" not found in D:\inetpub\localuser\static.ecare.pro\fcm\vendor\guzzlehttp\promises\src\Promise.php:14
Stack trace:
#0 {main}
  thrown in D:\inetpub\localuser\static.ecare.pro\fcm\vendor\guzzlehttp\promises\src\Promise.php on line 14