That does look as if the Mini did not like the latest Glo firmware. The latest version I've tried on a Mini is 4.38.21908.
You can try a manual factory reset on your Mini using the procedure from
Manual reset your Kobo Mini and then try installing newer firmware.
If that doesn't work, you can leave a message in the
Kobo µSD Card Image Requests forum requesting an image for a Kobo N705 Mini.