Success macOS 11.4 installed iMac 20,2

Intel Core i7 10700

Gigabyte h410 h v2

ram hyper-x 16gb (8x2)

intel UHD 630

it's been 1 month everything is good

but I still can not sign in iMesseges and FaceTime

I think i'v tried every way

any advice?

https://preview.redd.it/sso8fwk54yg71.png?width=2560&format=png&auto=webp&s=36bfb381dada261b5f6a836dc7937f5c63b0755b