We haven't received any similar cases reported to us. I suggest opening your QuickBooks using an incognito or private browser. It's possible that the browser stores frequently accessed data, thus causing websites, like QuickBooks, to act weirdly.
To save you time, use either of these keyboard shortcuts:
If the same problem occurs, try using a different browser. This can be an issue with the browser that you use and QuickBooks.
I'm also adding these articles for more guidance about how Online bill works in QuickBooks:
Don't hesitate to click the Reply button below if you need further assistance paying bills in QBO. I'm always around if you need any help. Take care!
I appreciate you for trying the steps shared by my colleague, dishllc.
Upon review, there's no open investigation about the error message you got with Bill Pay. I'd recommend contacting our support so our engineers can examine this one.
You can reach them out through the ? Help icon.
Once this error is resolved, you can pin these links for the detailed information about Bill Pay:
Also, if you plan to bill a customer for the expense transaction, you can create a billable expense. Here's an article as your guide: Enter Billable expense.
You can always post here whenever you encounter issues on the system. We've got your back!