Hi Anitha,
For error for new page. Please download your old page content in XML file and delete your existing page and activate after that you can try to create new page and upload the same XML on that page.
if you create another main window in second page then it will be not impacted to the first page window content.
after that you can create your secondary window as required or you can place both page posiition for testing purpose like as you say your first page printing correctly, you can create second page to first page and current first page to second page and check how it work.
Regards,
Prasenjit