Fatal error: Uncaught Error: Class "GuzzleHttp\Cookie\CookieJar" not found in D:\xampp\htdocs\dropifypro\vendor\guzzlehttp\guzzle\src\Cookie\SessionCookieJar.php:8 Stack trace: #0 {main} thrown in D:\xampp\htdocs\dropifypro\vendor\guzzlehttp\guzzle\src\Cookie\SessionCookieJar.php on line 8