I have provisioned my server to domain controller using samba

sudo samba-tool domain provision 
    --interactive 
    --use-rfc2307 
    --backend-store=mdb 
    --backend-store-size=16Gb 
    --function-level=2016 
    --option="ad dc functional level = 2016"

I can join other machines to domain (using sssd) and log in to them using my domain accounts.
But I cannot login to my domain controller with my domain administrator account. I tried sssd, but in every instruction I saw – I need to join computer to domain (but I’m already in the domain as a domain controller). Can anyone tell me if it is possible and if so, how can I do it?

While I try to log in
sudo login [email protected]
I’m getting error – user not found

If I
id [email protected]
or
id administrator
I also get id: «[email protected]»: There is no such user