Adopt me app not working in my S7

i own a S7 and i have been using Adopt me app app for a year now!

i have no issues recently i upgraded my phone from 7.0 to 8.0 and suddenly

when i open my app it shows me a white screen and then it crashes and takes me to home screen?

i uninstalled the app and installed again ! no changes i restarted my phone thinking it would work

cause half of the problems get resolved in a reboot but no it didnt

any idea where did i go wrong?