I know this issue is in other versions/devices of CM13 so a search could solve this problem but I'm going to leave the fix here anyways.
Unfortunately, Setup Wizard has stopped.
This one actually occurs after applying gapps, with me it was the micro package, and I believe it happens with the other gapps that don't error upon trying to flash them.
Fix
Pull down the status bar and click on the settings icon. Scroll down to settings, tap on apps, and tap on the 3 dots at the top right and Show system. Scroll down and find Setup Wizard, tap on it and force stop it. Afterwards, tap on Permissions and enable both Contacts and Phone. Afterwards, if you click the home button again, it will allow you to access your home screen this time and your device will be usable again.
At random times you will still receive the
popup error "Unfortunately, Google Play Services have stopped." But it will quickly dissapear without you dismissing it. This fix is more of a masking method than a full fix.
EDIT: There is also a fix to the google play services error, which will allow you to install from the store again as well if you found you were having that issue. You will the same method as used to fix the Setup Wizard issue. Enable all the permissions in Google Play Services and Google Play Store and reboot your phone. It should all be working smoothly after this.
Edit (again, should be last one): Unfortunately I've found the error actually still pops up on occasion, but everything is still working with google apps and installing from the play store.
Oddly enough, if you happen to recieve this error while browsing the play store or what I assume all Google apps needing the services to run, it will stop working completely until you close the app and re-open it. The error pops up twice between split seconds and doesn't appear again for a bit. I did notice that this does occur after installing certain, maybe all apps from Play Store. Once it begins to install the app, the error will show. But do not close Google play yet as it will still install what you have downloaded, so this is not a lost cause.
I forgot to include, this occurs on my device, which is a Sprint device. I am not sure if it is like the green camera issue, where it only affects certain people. If I could get a confirmation on this that would be nice