Fatal error: Uncaught Error: Class 'Zend\Serializer\Adapter\AbstractAdapter' not found in /var/www/html/autocar/vendor/zendframework/zend-serializer/src/Adapter/IgBinary.php:15 Stack trace: #0 {main} thrown in /var/www/html/autocar/vendor/zendframework/zend-serializer/src/Adapter/IgBinary.php on line 15