Solved. It was just needed to use all necessary wsdl and xsd files correctly:

my @schemas = (
    'parlayx_common_types_3_1.xsd',
    'parlayx_sms_types_3_0.xsd',
);

my $wsdl   = XML::Compile::WSDL11->new;
$wsdl->importDefinitions(\@schemas);
$wsdl->addWSDL('parlayx_sms_send_service_3_1.wsdl');
$wsdl->addWSDL('parlayx_sms_send_interface_3_1.wsdl');
$wsdl->addWSDL('parlayx_common_faults_3_0.wsdl');
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