Fatal error: Uncaught Error: Interface 'Psr\Http\Message\StreamInterface' not found in C:\xampp\htdocs\admin\vendor\guzzlehttp\psr7\src\FnStream.php:15 Stack trace: #0 {main} thrown in C:\xampp\htdocs\admin\vendor\guzzlehttp\psr7\src\FnStream.php on line 15