Fatal error: Uncaught Error: Class "App\Http\Controllers\Gateway\PaypalSdk\Core\PayPalEnvironment" not found in /var/www/html/core/app/Http/Controllers/Gateway/PaypalSdk/Core/SandboxEnvironment.php:5 Stack trace: #0 {main} thrown in /var/www/html/core/app/Http/Controllers/Gateway/PaypalSdk/Core/SandboxEnvironment.php on line 5