I am trying to insert a lead but I get this error:

Unable to process your request. Kindly verify whether you have entered proper method name,parameter and parameter values

This is my Perl code:

my $xmlData = q(
<Leads>
<row no="1">
<FL val="SMOWNERID">2000000016714</FL>
<FL val="Lead Owner">Scott</FL>
<FL val="Company">XSoft</FL>
<FL val="First Name">Peter</FL>
<FL val="Last Name">John</FL>



</row>

</Leads>

);

my $resp = (POST 'http://crm.zoho.com/crm/private/xml/Leads/insertRecords', [
    'ticket' => $ticket,
    'apikey' => $apikey,
    'xmlData' => $xmlData,
    'wfTrigger' => 'false',
    'duplicateCheck' => 'false',
    'isApproval' => 'false',
    'newFormat' => 1
]);
my $response_to_discard = $browser->request($resp);

I also created a HTML form with the data hard coded and submitted it that way with the same result.

Any help would be appreciated, thanks!