Post [Q] Unfortunately, Setup Wizard stopped working

I've recently installed a ROM from here : https://carbon-rom.com/downloads/?de...n&type=nightly
Now that I try to know what version of android it is, I'm unable to!
I want to install GAPPS without which, I get pop-ups upon startup such as "com.google.apps has stopped working", "Unfortunately, setup wizard has stopped working" and such.
I cannot even determine which version of android I'm running currently as the only things I see are these pop-ups.. I cannot get into the UI.
Any help would be appreciated!