unable to email bulk invoices myob on the browser

I recently sent a post but can't seem to find it. I also received a response to this post to provided last four numbers of my serial number

I have account right on the browser and I can't email out bulk invoices.

I recently had accountright live but this is now a read only file. I checked the box for sending via Accountright emails is ticked. However, the file is now locked. I can email invoices individually.