Cannot push notifications to fire 10

i have a Fire10 tablet, from 2017 i think. when i opened HA app for the first time, it said something about enabling mobile_app integration in the instance. it warned if i dont have enabled, i wont get notifications. i skip that warning because i dont know where to enable.
any idea what went wrong?

in my Integrations, I do see the Mobile App there:
image

but i dont see the options to send anything to the Fire10 tablet here: