How to rebuild log ?

I did a restore this morning to a database (full) involved in replication:

Database is now up and runing. The replication doen't work.

The error message I get sugest to do a rebuild to the log :

(I started receiving error message just after the restore)

"10/27/2008 14:22:04,spid91,Unknown,Replication-Replication Transaction-Log Reader Subsystem: agent DGRNDBVPITIJ03-EntidadesExternas-2 failed. The process could not execute 'sp_repldone/sp_replcounters' on 'DGRNDBVPITIJ03'.
10/27/2008 14:22:04,spid91,Unknown,Error: 14151<c/> Severity: 18<c/> State: 1.
10/27/2008 14:22:04,spid94,Unknown,An error occurred while processing the log for database 'EntidadesExternas'.  If possible<c/> restore from backup. If a backup is not available<c/> it might be necessary to rebuild the log.
10/27/2008 14:22:04,spid94,Unknown,Error: 9004<c/> Severity: 23<c/> State: 4.
10/27/2008 14:20:50,spid71,Unknown,Replication-Replication Transaction-Log Reader Subsystem: agent DGRNDBVPITIJ03-EntidadesExternas-2 failed. The process could not execute 'sp_repldone/sp_replcounters' on 'DGRNDBVPITIJ03'.