I am getting the below error when zimbra tries to sync with my yahoo contacts.

Please help!
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Product name: Zimbra Desktop
Product version: 2.0
Build ID: 10580
Release type: GA
OS Platform: Windows XP x86 5.1
Time of event: 2010-11-17 20:28:08
Error type: service.FAILURE
Item ID: 7
Error summary: Yahoo address book synchronization failed

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Affected data - PLEASE REMOVE ANY SENSITIVE INFORMATION (size=0):
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Failure details - PLEASE REMOVE ANY SENSITIVE INFORMATION
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com.zimbra.common.service.ServiceException: system failure: Unable to add mapping for dataSource yahoo millennium-contacts
ExceptionId:sync-mbox-shyam_mcc@yahoo.co.uk:1290025688212:9a49fc7fb2f127 d1
Code:service.FAILURE
at com.zimbra.common.service.ServiceException.FAILURE (ServiceException.java:248)
at com.zimbra.cs.db.DbDataSource.addMapping(DbDataSou rce.java:109)
at com.zimbra.cs.offline.ab.LocalData.updateMapping(L ocalData.java:160)
at com.zimbra.cs.offline.ab.yab.SyncSession.updateCon tactMapping(SyncSession.java:462)
at com.zimbra.cs.offline.ab.yab.SyncSession.processCo ntactResult(SyncSession.java:280)
at com.zimbra.cs.offline.ab.yab.SyncSession.processCo ntactResults(SyncSession.java:239)
at com.zimbra.cs.offline.ab.yab.SyncSession.sync(Sync Session.java:102)
at com.zimbra.cs.offline.ab.yab.YabImport.importData( YabImport.java:68)
at com.zimbra.cs.offline.OfflineImport.importData(Off lineImport.java:94)
at com.zimbra.cs.offline.YMailImport.importData(YMail Import.java:59)
at com.zimbra.cs.datasource.DataSourceManager.importD ata(DataSourceManager.java:254)
at com.zimbra.cs.datasource.DataSourceManager.importD ata(DataSourceManager.java:219)
at com.zimbra.cs.mailbox.DataSourceMailbox.syncAllLoc alDataSources(DataSourceMailbox.java:430)
at com.zimbra.cs.mailbox.DataSourceMailbox.sync(DataS ourceMailbox.java:460)
at com.zimbra.cs.mailbox.DataSourceMailbox.syncOnTime r(DataSourceMailbox.java:397)
at com.zimbra.cs.mailbox.SyncMailbox$1.run(SyncMailbo x.java:262)
at java.util.TimerThread.mainLoop(Unknown Source)
at java.util.TimerThread.run(Unknown Source)
Caused by: java.sql.SQLException: [SQLITE_CONSTRAINT] Abort due to constraint violation (columns data_source_id, remote_id are not unique)
at org.sqlite.DB.newSQLException(DB.java:374)
at org.sqlite.DB.newSQLException(DB.java:378)
at org.sqlite.DB.execute(DB.java:333)
at org.sqlite.DB.executeUpdate(DB.java:354)
at org.sqlite.PrepStmt.executeUpdate(PrepStmt.java:91 )
at com.zimbra.cs.db.DebugPreparedStatement.executeUpd ate(DebugPreparedStatement.java:173)
at org.apache.commons.dbcp.DelegatingPreparedStatemen t.executeUpdate(DelegatingPreparedStatement.java:1 02)
at com.zimbra.cs.db.DbDataSource.addMapping(DbDataSou rce.java:101)
... 16 more

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