I appreciate the screenshots you've provided, James Read.
I recommend reaching out to our QuickBooks support since the error persists even after doing the troubleshooting. You can reach them through the following link and going directly to the Help and Support section: Contact QuickBooks.
- Log in to your QuickBooks account using a mobile browser.
- Click on Help and choose Contact us.
- In the description box, enter something the error you got.
- Click Let's talk.
- Choose from Message an agent or Get a callback
If there's anything that I can help, you can always go back to this thread.
