Error 4769 Domain controller

I started working on this network. Getting failure audits with error 4769. Its windows 2012 server.

It is coming from various different workstations from various different user accounts or machine name with $

Can someone please help?

A Kerberos service ticket was requested.

Account Information:
      Account Name:            DESKTOP123$@domainname.COM
      Account Domain:            domainname.COM
      Logon GUID:            {00000000-0000-0000-0000-000000000000}

Service Information:
      Service Name:            krbtgt/domainname.COM
      Service ID:            NULL SID

Network Information:
      Client Address:            ::ffff:192.168.0.xx
      Client Port:            51215

Additional Information:
      Ticket Options:            0x60810010
      Ticket Encryption Type:      0xFFFFFFFF
      Failure Code:            0xE
      Transited Services:      -

This event is generated every time access is requested to a resource such as a computer or a Windows service.  The service name indicates the resource to which access was requested.

This event can be correlated with Windows logon events by comparing the Logon GUID fields in each event.  The logon event occurs on the machine that was accessed, which is often a different machine than the domain controller which issued the service ticket.

Ticket options, encryption types, and failure codes are defined in RFC 4120.