Mac App Store "An unexpected error occurred while signing in", hackintosh newb here.

I've searched everywhere and all answers have left me nowhere, so I'm asking here.

I'm a hackintosh noob and I've been using my current PC as a mac for app development.

I need to access the Mac App Store and other iCloud services to continue doing stuff. When I try to sign in I get this issue though: "An unexpected error occurred while signing in", with the content "Failure".

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My specs are:
Motherboard: Gigabyte B360M DS3H

CPU: Intel i3 8100

RAM: 16gb

GPU: Sapphire RX 570

Storage: 512gb OCZ Vertex 4 (for mac)

Install Method: idk I followed this tutorial: https://www.youtube.com/watch?v=fA9AotXqkqA, description says Vanilla, so that I guess.

I can provide as much information as needed.

Thanks for your help!