Hi,

update as this -> your notification and email script is on sysapproval_approver

(function runMailScript(/* GlideRecord */ current, /* TemplatePrinter */ template,
          /* Optional EmailOutbound */ email, /* Optional GlideRecord */ email_action,
          /* Optional GlideRecord */ event) {

    var record = new GlideRecord('sc_req_item');
    var sysCurrentRecordSysId = current.sysapproval;
    record.addQuery('sys_id', sysCurrentRecordSysId);
    record.query();
    if (record.next()) {
        var obj = JSON.parse(record.variables.request_information); //update with your variable set name
    for(var i=0; i<obj.length; i++) {
    template.print('<br/>' + 'System: ' + obj[i].system_name); 
    template.print('<br/>' + 'Profile: ' + obj[i].profile_name);
    template.print('<br/>' + 'Approver: ' + obj[i].aprovador_do_perfil);
        }
    }
}

)(current, template, email, email_action, event);

Regards
Ankur