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Fatal error: Uncaught exception 'Aws\DynamoDb\Exception\DynamoDbException' with message 'Error executing "Query" on "https://dynamodb.us-west-2.amazonaws.com"; AWS HTTP error: Client error: `POST https://dynamodb.us-west-2.amazonaws.com` resulted in a `400 Bad Request` response: {"__type":"com.amazon.coral.service#SerializationException"} SerializationException (client): - {"__type":"com.amazon.coral.service#SerializationException"}' GuzzleHttp\Exception\ClientException: Client error: `POST https://dynamodb.us-west-2.amazonaws.com` resulted in a `400 Bad Request` response: {"__type":"com.amazon.coral.service#SerializationException"} in phar:///var/www/html/includes/aws.phar/GuzzleHttp/Exception/RequestException.php:113 Stack trace: #0 phar:///var/www/html/includes/aws.phar/GuzzleHttp/Middleware.php(66): GuzzleHttp\Exception\RequestException::create(Object(GuzzleHttp\Psr7\Request), Object(GuzzleHttp\Psr7\Response)) #1 phar:///var/www/html/includes/aws.phar/GuzzleHttp/Promise/Promise.php(203): GuzzleHttp\Middleware::Guz in phar:///var/www/html/includes/aws.phar/Aws/WrappedHttpHandler.php on line 191