I totally see the urgency to get this resolved to make sure your invoices are sent out, mr_galaxyre.

I looked at our records and I can see that an investigation about this error was opened by our engineers. This means that our our engineering team already working to determine what's causing the delivery error and create a permanent fix as well.

Make sure to contact our phone or chat support teams and let them know to add you to the list of affected users for INV-78254. You will also be notified via email as soon as the banking connection is sorted out. 

Here's how to reach out to them:

1. Click the Help menu in the upper-right hand corner of your QBO account.
2. Type in "Talk to a human" in the chatbox, then press Enter. Then, type in the same keyword and press Enter one more time.
3. Select No.
4. Choose between Chat with us or Have us call you.

In meantime, you'll want to export your invoices out of QBO. Then, send them out as PDF using your personal or business email. Here's how: 

1. Open the invoice in the Sales menu.
2. Click the drop-down list beside Receive payment, then select Print. 
3. Look for the Download icon and click on it. 

Let me know in your reply if you're able to send the invoices to your clients. We're always on the go if you need anything else.