I cannot select my phonebook to setup call forwarding, it ends up with "com.android.phone has stopped". I use this procedure/steps:
It stopped at screenshot 9, blue icon to select phonebook.
Although call forwarding does work (by entering the phonenumber manually) I do want to select contacts from my phonebook. This procedure does work on a Samsung S7 with nearly the same Android release.
This Nokia 2 has the latest available software installed:
* Android 7.1.1 (kernel 3.10.49 - Sep 12 2018)
* security patches: Sep 1 2018
A factory reset does not solve this issue.