Dear sirs

I got several error per day in my client DNN portal. and I could not undrestand it:

AssemblyVersion:7.3.4

PortalID:-1

PortalName:

UserID:-1

UserName:

ActiveTabID:-1

ActiveTabName:

RawURL:

AbsoluteURL:

AbsoluteURLReferrer:

UserAgent:

DefaultDataProvider:DotNetNuke.Data.SqlDataProvider, DotNetNuke

ExceptionGUID:0460183a-e680-40f6-9344-07c84f8ade94

InnerException:Invalid object name 'dbo.vw_MessagesForDispatch'.

FileName:

FileLineNumber:0

FileColumnNumber:0

Method:System.Data.SqlClient.SqlConnection.

StackTrace:

Message:

System.Data.SqlClient.SqlException (0x80131904): Invalid object name 'dbo.vw_MessagesForDispatch'.
   at System.Data.SqlClient.SqlConnection. (SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction)
   at System.Data.SqlClient.SqlInternalConnection. (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.SqlDataReader.TryConsumeMetaData()
   at System.Data.SqlClient.SqlDataReader.get_MetaData()
   at System.Data.SqlClient.SqlCommand.FinishExecuteReader(SqlDataReader ds, RunBehavior runBehavior, String resetOptionsString)
   at System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean async, Int32 timeout, Task& task, Boolean asyncWrite, SqlDataReader ds)
   at System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method, TaskCompletionSource`1 completion, Int32 timeout, Task& task, Boolean asyncWrite)
   at System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method)
   at System.Data.SqlClient.SqlCommand.ExecuteReader(CommandBehavior behavior, String method)
   at System.Data.SqlClient.SqlCommand.ExecuteDbDataReader(CommandBehavior behavior)
   at System.Data.Common.DbCommand.System.Data.IDbCommand.ExecuteReader(CommandBehavior behavior)
   at DotNetNuke.Data.PetaPoco.PetaPocoExt.ExecuteReader(Database database, String sql, Object[] args)
   at DotNetNuke.Data.PetaPoco.PetaPocoHelper.ExecuteReader(String connectionString, CommandType type, Int32 timeout, String sql, Object[] args)
   at DotNetNuke.Data.SqlDataProvider.ExecuteReader(String procedureName, Object[] commandParameters)
   at DotNetNuke.Services.Social.Messaging.Data.DataService.GetNextMessagesForInstantDispatch(Guid schedulerInstance, Int32 batchSize)
   at DotNetNuke.Services.Social.Messaging.Internal.InternalMessagingControllerImpl.GetNextMessagesForInstantDispatch(Guid schedulerInstance, Int32 batchSize)
   at DotNetNuke.Services.Social.Messaging.Scheduler.CoreMessagingScheduler.HandleInstantMessages(Guid schedulerInstance)
   at DotNetNuke.Services.Social.Messaging.Scheduler.CoreMessagingScheduler.DoWork()
ClientConnectionId:2f935c4a-d9c1-4e4b-82f4-3f20fa5bf184

Please help me to got it... Thanks before