Upon printing estimates, it does not show any details. Please help. Thank you

Correct, same here, it appears to be a system wide outage.  Rest assure that the IT team members not suffering from panic attacks right now are diligently diagnosing the issue for resolution, but it may take time for the solution to propagate to all customers due to all of the customers making 50 million print requests over and over again.  Stand by!

Hi Marjorie,

We're aware that some QuickBooks Online users are currently experiencing errors when viewing or printing invoices. Our engineers are working to fix it as soon as possible. You may also check for updates on your end from time to time through this link: https://status.quickbooks.intuit.com/

Thank you for your understanding while we're working on a fix.