FRS event ID 13539 occurs when FRS is in an error state or the replica root object ID or the USN journal ID or a file ID has been altered and does not match the values in the FRS database. Possible reasons are reimaging the volume or applications that change the file IDs without the knowledge of FRS.
Restore the FRS state on the server by performing a nonauthoritative restore (D2 operation). For more information, see Performing a Nonauthoritative Restore.