Unable to backup if already backed up previously

[chaoscreater]

Running into a new issue here. If an export/backup has already been done, running it a 2nd time would cause the following error:

If I delete the gkeep-export folder and run again, everything is fine.

[ndbeals]

Thanks for the bug report, there's a chance this is fixed by updating python-frontmatter, I'll investigate this fully but you may be able to get this quickly working for you again by doing pip install python-frontmatter --update in the same python environment keep-exporter is running in.