Hackintosh, iMessage and Facetime aren't working, but everything else works.

I followed the Dortania OpenCore Install Guide for my first time attempting Hackintosh and after following it, everything seems to work (audio, sleep, NVRAM, App Store, etc.), the only thing I can't get working is iMessage and Facetime. Every time I login into iMessage, it logs in, but logs out after a few seconds. For Facetime, it won't even login, it does nothing after logging in. I tried following the iServices in the post install section for the guide, but it still doesn't work. There aren't any error messages for both when trying to login. My system's specs:

- i5-9600kf

- Sapphire Pulse RX 5700xt

- MSI z370 SLI Plus (ALC1220 sound, and Intel I219-V ethernet)

- Samsung 970 Evo 500GB SSD

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Any help would be appreciated! Thanks! Also, I'm using ethernet and don't have any wifi or bluetooth capabilities, so I haven't tested anything related to those.

Here is also my config.plist if needed:

https://pastebin.com/raw/zYnkFuwN