Why does it do nothing when i go to add/make a google account?

[AC Question]

i have a RCA Viking pro, and i rooted it back in 2016, but for some reason even when i unroot, it wont let me make a new google account, it launches the app, but the app skin is not shown and i cant do anything to fix it, i tried every way i could but nothing worked, do you know how i can fix this?