Hi macfesto,
Sounds like you've hit a bit of a snag there! Totally get that handling your SMSF is your business, and you’ve got your way of doing things. However, for the system to process your super without that pesky error, your file does need to be online. Not ideal, I know, but that’s how it’s set up to work.
I understand that’s not what you were hoping to hear, but that’s how the system is designed. If you’re keen to dive into the details, here’s a handy link with everything you need to know: Set up superannuation funds.
Regards,
Sai