I have prepared version v1.0.106 - you will be notified within the app when the upgrade is available. This version also fixes your issue.
If you feel like it, please support GUI-O and leave a feedback on the app store (please make sure you are not in the Beta testing program before giving feedback - you can tap on the Leave button):
https://play.google.com/store/apps/details?id=com.guio.guioapp
Best regards,
Kl3m3n