WS 2016 Essentials AD Domain controller errors


New Member
I have several error messages in System Erreiginis of windows server 2016 essentials

- Error 4015 DNS server has detected a critical AD error make sure that Active Directory is working properly

- Error 1054 Could not get the name of a domain controller while processing group policy.

- The server is not functional.

Error 44 Microsoft-CertificationAuthority ..... A connection to the Active Directory containing the certification authority could not be established.

All of these errors came after I removed and reinstalled the certification authority. In the process of configuring Server Dashboard, a message was received that
there was a problem with Certification Authority solve first to continue the configuration of the dashboard.

Now there is no access to the server share folders even on the server itself.

Please help