We're trying to migrate the sql express db to our 2008 server using web matrix. We get the following error. can anyone help? Its umbraco 7.2

Database error 

Migration failed

An error occurred during execution of the database script. The error occurred between the following lines of the script: "267" and "269". The verbose log might have more information about the error. The command started with the following:
"INSERT INTO [dbo].[cmsContentVersion]([id],[Conten"
The conversion of a varchar data type to a datetime data type resulted in an out-of-range value.
The statement has been terminated. http://go.microsoft.com/fwlink/?LinkId=178587  Learn more at: http://go.microsoft.com/fwlink/?LinkId=221672#ERROR_SQL_EXECUTION_FAILURE.

Microsoft.Web.Deployment.DeploymentDetailedClientServerException: An error occurred during execution of the database script. The error occurred between the following lines of the script: "267" and "269". The verbose log might have more information about the error. The command started with the following:
"INSERT INTO [dbo].[cmsContentVersion]([id],[Conten"
The conversion of a varchar data type to a datetime data type resulted in an out-of-range value.
The statement has been terminated. http://go.microsoft.com/fwlink/?LinkId=178587  Learn more at: http://go.microsoft.com/fwlink/?LinkId=221672#ERROR_SQL_EXECUTION_FAILURE. ---> System.Data.SqlClient.SqlException: The conversion of a varchar data type to a datetime data type resulted in an out-of-range value.
The statement has been terminated.
   at System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction)
   at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction)
   at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj, Boolean callerHasConnectionLock, Boolean asyncClose)
   at System.Data.SqlClient.TdsParser.TryRun(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj, Boolean& dataReady)
   at System.Data.SqlClient.SqlCommand.RunExecuteNonQueryTds(String methodName, Boolean async, Int32 timeout, Boolean asyncWrite)
   at System.Data.SqlClient.SqlCommand.InternalExecuteNonQuery(TaskCompletionSource`1 completion, String methodName, Boolean sendToPipe, Int32 timeout, Boolean asyncWrite)
   at System.Data.SqlClient.SqlCommand.ExecuteNonQuery()
   at Microsoft.Web.Deployment.DBStatementInfo.Execute(DbConnection connection, DbTransaction transaction, DeploymentBaseContext baseContext, Int32 timeout)
   --- End of inner exception stack trace ---
   at Microsoft.Web.Deployment.DBStatementInfo.Execute(DbConnection connection, DbTransaction transaction, DeploymentBaseContext baseContext, Int32 timeout)
   at Microsoft.Web.Deployment.DBConnectionWrapper.ExecuteSql(DBStatementInfo sqlStatement, DeploymentBaseContext baseContext, Int32 timeout)
   at Microsoft.Web.Deployment.SqlScriptToDBProvider.AddHelper(DeploymentObject source, Boolean whatIf)
   at Microsoft.Web.Deployment.SqlScriptToDBProvider.Add(DeploymentObject source, Boolean whatIf)
   at Microsoft.Web.Deployment.DeploymentObject.AddChild(DeploymentObject source, Int32 position, DeploymentSyncContext syncContext)
   at Microsoft.Web.Deployment.DeploymentSyncContext.HandleAddChild(DeploymentObject destParent, DeploymentObject sourceObject, Int32 position)
   at Microsoft.Web.Deployment.DeploymentSyncContext.SyncChildrenOrder(DeploymentObject dest, DeploymentObject source)
   at Microsoft.Web.Deployment.DeploymentSyncContext.SyncChildren(DeploymentObject dest, DeploymentObject source)
   at Microsoft.Web.Deployment.DeploymentSyncContext.SyncChildrenOrder(DeploymentObject dest, DeploymentObject source)
   at Microsoft.Web.Deployment.DeploymentSyncContext.SyncChildren(DeploymentObject dest, DeploymentObject source)
   at Microsoft.Web.Deployment.DeploymentSyncContext.ProcessSync(DeploymentObject destinationObject, DeploymentObject sourceObject)
   at Microsoft.Web.Deployment.DeploymentObject.SyncToInternal(DeploymentObject destObject, DeploymentSyncOptions syncOptions, PayloadTable payloadTable, ContentRootTable contentRootTable, Nullable`1 syncPassId, String syncSessionId)
   at Microsoft.Web.Deployment.DeploymentObject.SyncTo(DeploymentProviderOptions providerOptions, DeploymentBaseOptions baseOptions, DeploymentSyncOptions syncOptions)
   at Microsoft.Web.Deployment.DeploymentObject.SyncTo(String provider, String path, DeploymentBaseOptions baseOptions, DeploymentSyncOptions syncOptions)
   at Microsoft.Web.Deployment.DeploymentObject.SyncTo(DeploymentWellKnownProvider provider, String path, DeploymentBaseOptions baseOptions, DeploymentSyncOptions syncOptions)
   at Microsoft.WebMatrix.DatabaseManager.Client.SqlCeHelper.<>c__DisplayClass8.<StartMigrate>b__7(Object sender, DoWorkEventArgs eventArgs)
   at System.ComponentModel.BackgroundWorker.OnDoWork(DoWorkEventArgs e)
   at System.ComponentModel.BackgroundWorker.WorkerThreadStart(Object argument)