Description:
------------
Apache 503 Service Unavailable when running the script.

Test script:
---------------
try{
	$soap =  new SoapClient($url, [
		'trace' => 1,
		'exceptions' => 1,
		'style' => SOAP_DOCUMENT,
		'use' => SOAP_LITERAL,
		'soap_version' => SOAP_1_1,
		'encoding' => 'UTF-8',
		'stream_context' => stream_context_create($stramOptions)
	]);
	
	$return = $soap->solicitaEtiquetas($parametros); // <-- generated exception here.
	
	
}catch (Exception $e){
	echo $e->getMessage();
}