Fatal error: Uncaught Error: Class "Lcobucci\JWT\Signer\Rsa" not found in /home/oyaagyug/public_html/vendor/lcobucci/jwt/src/Signer/Rsa/Sha512.php:18 Stack trace: #0 {main} thrown in /home/oyaagyug/public_html/vendor/lcobucci/jwt/src/Signer/Rsa/Sha512.php on line 18