As I understand your phone can not recognize your fingerprint . If It is , you should install OOS 11 Global 18.104.22.168 first then install crdroid . After that fod should work . If your phone recognize the your fingerprint but can not successfully work try to change Live display or panel modes as natural (or sRGB try both) and keep display cutout normal.
In case anyone else finds themselves needing a notification led replacement, I did final find an app that worked with this rom as expected. It is just an on-screen dot, no edge lighting. That was good enough for me. It's LED Blinker Notifications Lite AoD-Manage lights. $4 if you want to buy the pro version with all the extras, but there is a free/ad suppoted version which is good enough for pre-purchase testing (and maybe enough features for most people).
*** Disclaimer I am not responsible for any damage you made to your device You have been warned