Fatal error: Uncaught Error: Class 'OAuth\Common\Http\Client\AbstractClient' not found in C:\xampp7\htdocs\edgpens\vendor\lusitanian\oauth\src\OAuth\Common\Http\Client\StreamClient.php:11 Stack trace: #0 {main} thrown in C:\xampp7\htdocs\edgpens\vendor\lusitanian\oauth\src\OAuth\Common\Http\Client\StreamClient.php on line 11