Facetime is suddenly deactivated and can't be activated anymore.

Device: Lenovo Y50

I followed this tutorial with addition of checking trust flag and it worked 2 months ago: https://hackintosher.com/guides/quick-fixes-facetime-icloud-imessage-hackintosh-not-working/

Then 3 days ago, it is suddenly deactivated (I didn't upgrade nor clean installed). Now this does not work anymore, even with multiple Apple IDs + logging off all icloud accounts.

I wonder why Facetime deactivated and what steps I am missing rn. Thanks.