error 13562..duplicate server entries

i am receiving this error

13562…Following is the summary of warnings and errors encountered by File Replication Service while polling the Domain Controller Mgt.candrr.org for FRS replica set configuration information.
 
 The nTDSConnection object cn=car1,cn=ntds settings,cn=mgt,cn=servers,cn=sj-site1,cn=sites,cn=configuration,dc=candrr,dc=org is conflicting with cn=car1\0acnf:df6f128c-b062-4780-944d-0e9b4f222122,cn=ntds settings,cn=mgt,cn=servers,cn=sj-site1,cn=sites,cn=configuration,dc=candrr,dc=org. Using cn=car1,cn=ntds settings,cn=mgt,cn=servers,cn=sj-site1,cn=sites,cn=configuration,dc=candrr,dc=org

can someone tell me how to delete it and