Security policy cannot be propagated. Cannot access the template. Error code = 3

Hi,

I have two domain controller in my network. Any of these domain controllers every 5 minutes encountered the following error:

Security policy cannot be propagated. Cannot access the template. Error code = 3

I ran the following command on all of the computers in order to sync their times with domain controllers.

net time \\(domain controller name) /set /y

And when I Stop the File Replication Services I got the following error:

Any help would be appreciated.

Thanks