Fatal error: Uncaught Error: Interface 'JsonSerializable' not found in /home3/puntoeje/public_html/blockchain/arweave/vendor/web-token/jwt-framework/src/Component/Core/JWK.php:18 Stack trace: #0 {main} thrown in /home3/puntoeje/public_html/blockchain/arweave/vendor/web-token/jwt-framework/src/Component/Core/JWK.php on line 18