Data is not being scraped

I have created a sitemap for a table, the data preview shows the data; but when I try to scrape it, no data is found. When I export it to CSV, only the header is exported.
Could it be that this site requires a login to access it?

http://sites.unanet.com/demo_baziz/action/reports/financials/accounts_receivable/detail/report?runFrom=R_61

Sitemap:
{"_id":"arreport","startUrl":["http://sites.unanet.com/demo_baziz/action/reports/financials/accounts_receivable/detail/report?runFrom=R_61"],"selectors":[{"id":"data","type":"SelectorTable","parentSelectors":["_root"],"selector":"table.una_58_style_21","multiple":true,"columns":[{"header":"Type","name":"Type","extract":true},{"header":"Doc No","name":"Doc No","extract":true},{"header":"Doc Date","name":"Doc Date","extract":true},{"header":"Due Date","name":"Due Date","extract":true},{"header":"Period","name":"Period","extract":true},{"header":"Description","name":"Description","extract":false},{"header":"Amount","name":"Amount","extract":true},{"header":"Balance","name":"Balance","extract":true},{"header":"Current","name":"Current","extract":true},{"header":"1 - 30","name":"1 - 30","extract":true},{"header":"31 - 60","name":"31 - 60","extract":true},{"header":"61 - 90","name":"61 - 90","extract":true},{"header":"Over 90","name":"Over 90","extract":true}],"delay":0,"tableDataRowSelector":".una_58_style_3 tr","tableHeaderRowSelector":"tr.una_58_style_2:nth-of-type(2)"}]}

{id:"sitemap code"}

Ya I am seeing a login page for that link. You can save the password first in Chrome before the scrape. Then add an Element Click for the Login button.