Hi,

There is a bug in the installation process you can reproduce it with:

- let the distro load until it reaches to the blue with language option
- press F1 then choose keyboard layout
- Then press Tab (it will go down to continue) and hit Enter

You will find the same error in the attachment. If you cant see the 
attachment i have uploaded the image here:

https://anonfiles.com/L7pdJ410p8/Guixbug_png

THX!