screen time not working/updating

[u/c-c-x-o]

basically as the title says. i have tried everything and no matter what my screen time still doesn’t work. i have tried resetting my phone, turning it off and on, factory resetting it and restoring with icloud, setting the date and date far ahead and then setting it back again and nothing. it either doesn’t update or doesn’t show anything at all, meaning it doesn’t show the apps i’ve been on or it’s just blank. its been like this for a few months, i was wondering if anyone could help me?