I have the same issue and getting this error, again and again in the event viewer.

AbsoluteURL:/Default.aspx

DefaultDataProvider:DotNetNuke.Data.SqlDataProvider, DotNetNuke

ExceptionGUID:47bb3c3b-6960-4dda-a65c-8dddf16202bf

AssemblyVersion:

PortalId:-1

UserId:-1

TabId:-1

RawUrl:

Referrer:

UserAgent:

ExceptionHash:WAStJCm2yhWG6I+8jybV7g==

Message:SimilarCount

StackTrace:

at System.Data.ProviderBase.FieldNameLookup.GetOrdinal(String fieldName)
at System.Data.SqlClient.SqlDataReader.GetOrdinal(String name)
at System.Data.SqlClient.SqlDataReader.get_Item(String name)
at DotNetNuke.Services.Journal.JournalItem.Fill(IDataReader dr)
at DotNetNuke.Common.Utilities.CBO.FillObjectFromReader(Object objObject, IDataReader dr)
InnerMessage:

InnerStackTrace:

Source:System.Data

FileName:

FileLineNumber:0

FileColumnNumber:0

Method:

Server Name: salal

is there a second related entry in the DNN eventlog with additional information (loggest just prior to this one)?

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Cheers from Germany,
Sebastian Leupold

   

Speed up your DNN Websites with TurboDNN

if you click the respective item in Eventviewer, it should expand all details. There just seem to be part of the stack trace missing.

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Cheers from Germany,
Sebastian Leupold

   

Speed up your DNN Websites with TurboDNN