Error: Class "Zend\Serializer\Serializer" not found in /chroot/home/a9dbbdaf/richardsonsaw.com/html/vendor/thaiphan/magento2-s3/Model/MediaStorage/File/Storage/S3.php:124
Stack trace:
#0 /chroot/home/a9dbbdaf/richardsonsaw.com/html/vendor/thaiphan/magento2-s3/Model/MediaStorage/File/Storage/S3.php(82): Thai\S3\Model\MediaStorage\File\Storage\S3->getSerializer()
#1 /chroot/home/a9dbbdaf/richardsonsaw.com/html/vendor/magento/framework/ObjectManager/Factory/AbstractFactory.php(121): Thai\S3\Model\MediaStorage\File\Storage\S3->__construct(Object(Thai\S3\Helper\Data), Object(Magento\MediaStorage\Helper\File\Media), Object(Magento\MediaStorage\Helper\File\Storage\Database\Interceptor), Object(Magento\Framework\Logger\LoggerProxy))
#2 /chroot/home/a9dbbdaf/richardsonsaw.com/html/vendor/magento/framework/ObjectManager/Factory/Compiled.php(108): Magento\Framework\ObjectManager\Factory\AbstractFactory->createObject('Thai\\S3\\Model\\M...', Array)
#3 /chroot/home/a9dbbdaf/richardsonsaw.com/html/vendor/magento/framework/ObjectManager/ObjectManager.php(56): Magento\Framework\ObjectManager\Factory\Compiled->create('Thai\\S3\\Model\\M...', Array)
#4 /chroot/home/a9dbbdaf/richardsonsaw.com/html/generated/code/Thai/S3/Model/MediaStorage/File/Storage/S3Factory.php(43): Magento\Framework\ObjectManager\ObjectManager->create('\\Thai\\S3\\Model\\...', Array)
#5 /chroot/home/a9dbbdaf/richardsonsaw.com/html/vendor/thaiphan/magento2-s3/Model/MediaStorage/File/Storage/Synchronisation/Plugin.php(47): Thai\S3\Model\MediaStorage\File\Storage\S3Factory->create()
#6 /chroot/home/a9dbbdaf/richardsonsaw.com/html/vendor/magento/framework/Interception/Interceptor.php(121): Thai\S3\Model\MediaStorage\File\Storage\Synchronisation\Plugin->beforeSynchronize(Object(Magento\MediaStorage\Model\File\Storage\Synchronization\Interceptor), 'media/catalog/p...')
#7 /chroot/home/a9dbbdaf/richardsonsaw.com/html/vendor/magento/framework/Interception/Interceptor.php(153): Magento\MediaStorage\Model\File\Storage\Synchronization\Interceptor->Magento\Framework\Interception\{closure}('media/catalog/p...')
#8 /chroot/home/a9dbbdaf/richardsonsaw.com/html/generated/code/Magento/MediaStorage/Model/File/Storage/Synchronization/Interceptor.php(23): Magento\MediaStorage\Model\File\Storage\Synchronization\Interceptor->___callPlugins('synchronize', Array, Array)
#9 /chroot/home/a9dbbdaf/richardsonsaw.com/html/vendor/magento/module-media-storage/App/Media.php(216): Magento\MediaStorage\Model\File\Storage\Synchronization\Interceptor->synchronize('media/catalog/p...')
#10 /chroot/home/a9dbbdaf/richardsonsaw.com/html/vendor/magento/module-media-storage/App/Media.php(194): Magento\MediaStorage\App\Media->createLocalCopy()
#11 /chroot/home/a9dbbdaf/richardsonsaw.com/html/vendor/magento/framework/App/Bootstrap.php(264): Magento\MediaStorage\App\Media->launch()
#12 /chroot/home/a9dbbdaf/richardsonsaw.com/html/pub/get.php(87): Magento\Framework\App\Bootstrap->run(Object(Magento\MediaStorage\App\Media))
#13 {main}