Weekly scheduled backup on one database - free version

I am currently using the free version. I have one database being backed. If my PC is offline the weekly schedule fails with an error message indicating access to your server fails. Is there anyway I can change any setting to avoid this requirement before the scheduler works?? [when I am offline on this PC]?
Thanks for any advice on this.

Hello Jonathan_JOFFE,

To resolve the issue, we require further details. Could you please provide us with a screenshot of the problem and a complete log, including the error message you received?

Please let us know if you have any other questions.

Thank you, and apologies for the inconvenience.