----ERROR ASIN:<br /><pre>Array
(
    [0] => <h4>InvalidSignature</h4>
					<p>The request has not been correctly signed. If you are using an AWS SDK, requests are signed for you automatically; otherwise, go to https://webservices.amazon.es/paapi5/documentation/sending-request.html#signing.</p>
)
</pre><hr />
ERROR 404.1