I cannot import a csv file, this is the error from application log.

Event Type: Error
Event Source: MSCRMWebService
Event Category: None
Event ID: 18176
Date: 2/26/2008
Time: 7:05:36 PM
User: N/A
Computer: C357
Description:
Web Service Plug-in failed in OrganizationId:
15669be0-6a30-4575-986e-1117935a4f4c; SdkMessageProcessingStepId:
65cabb1b-ea3e-db11-86a7-000a3a5473e8; EntityName: new_contactstaging; Stage:
20; MessageName: Create; AssemblyName: Microsoft.Crm.HasDuplicatesPlugin,
Microsoft.Crm.DuplicateDetection, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=31bf3856ad364e35; ClassName:
Microsoft.Crm.HasDuplicatesPlugin; Exception: Unhandled Exception:
System.Data.SqlClient.SqlException: Invalid object name
'dbo.MatchCode52a3a192dc554940b213b87f7016d21a'.
at System.Data.SqlClient.SqlConnection.OnError(SqlExc eption exception,
Boolean breakConnection)
at System.Data.SqlClient.SqlInternalConnection.OnErro r(SqlException
exception, Boolean breakConnection)
at
System.Data.SqlClient.TdsParser.ThrowExceptionAndW arning(TdsParserStateObject
stateObj)
at System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior,
SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet
bulkCopyHandler, TdsParserStateObject stateObj)
at System.Data.SqlClient.SqlDataReader.ConsumeMetaDat a()
at System.Data.SqlClient.SqlDataReader.get_MetaData()
at System.Data.SqlClient.SqlCommand.FinishExecuteRead er(SqlDataReader ds,
RunBehavior runBehavior, String resetOptionsString)
at System.Data.SqlClient.SqlCommand.RunExecuteReaderT ds(CommandBehavior
cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean async)
at System.Data.SqlClient.SqlCommand.RunExecuteReader( CommandBehavior
cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method,
DbAsyncResult result)
at System.Data.SqlClient.SqlCommand.RunExecuteReader( CommandBehavior
cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method)
at System.Data.SqlClient.SqlCommand.ExecuteScalar()
at Microsoft.Crm.CrmDbConnection.InternalExecuteScala r(IDbCommand command)
at Microsoft.Crm.CrmDbConnection.ExecuteScalar(IDbCom mand command,
Boolean impersonate)
at Microsoft.Crm.CrmDbConnection.ExecuteScalar(IDbCom mand command)
at
Microsoft.Crm.HasDuplicatesPlugin.FindDuplicatesWi thoutPrivilege(ShareableDuplicateRuleCollection
publishedRulesForBaseEntity, DynamicEntity entity, Int32 maxMatchcodeLength,
IPluginExecutionContext context)
at Microsoft.Crm.HasDuplicatesPlugin.Execute(IPluginE xecutionContext
context)
at
Microsoft.Crm.Extensibility.PluginStep.Execute(Pip elineExecutionContext
context)