Fatal error: Uncaught Error: Interface "Luigel\Paymongo\Signer\Signer" not found in /home/brandscontent/public_html/vendor/luigel/laravel-paymongo/src/Signer/DefaultSigner.php:5 Stack trace: #0 {main} thrown in /home/brandscontent/public_html/vendor/luigel/laravel-paymongo/src/Signer/DefaultSigner.php on line 5