Intuit decided you needed new templates.  You should have received a warning e-mail about this forced change
–snip—
the warning email says – “If you don’t want to switch to the new layouts yet, you can keep the old ones for a few more months. Just Select “Classic” from the Form Styles […]

Resolution for 'classic invoice issue: 'WHY ARE MY INVOICES LAYOUTS NO LONGER THE SAME…MY COMPANY NAME NOW PRINTS ON THREE LINES INSTEAD OF JUST ONE' available: Yes.

The classic invoice issue or error code is a known issue in Quickbooks Online (QBO) and/or Quickbooks. Support for this issue is available either by self-service or paid support options. Experts are available to resolve your Quickbooks issue to ensure minimal downtime and continue running your business. First try to resolve the classic invoice issue yourself by looking for a resolution described in the article. If it is a complex classic invoice issue or you are unable to solve the issue, you may contact us by clicking here or by using other classic invoice support options.

For more information about resolving issues related to classic invoice in Quickbooks/QBO or to get support for the issue 'WHY ARE MY INVOICES LAYOUTS NO LONGER THE SAME…MY COMPANY NAME NOW PRINTS ON THREE LINES INSTEAD OF JUST ONE', click the link below: