Hi sarahl0u,
Sorry to hear you're getting an error message.
Usually, that message pops up because of the layout of the invoice you're working with. The browser version only supports Item and Services layouts, while the desktop version throws in Time Billing and Professional layouts too. To get around this, just switch up the default layout from the sales setting's menu.


That should hopefully do the trick and kick that error to the curb.
If you need any more help with this, just give us a shout!
If my response has answered your inquiry, please click "Accept as Solution" to assist other users find this information.
Thanks,
Genreve