Hi, I am using dnn 7 and I'm having problems with either the page "Activity Feed" and the module Journal: every time I write something the notice board or try to share something with other site users, DNN displays an Internal Server Error, does not perform the refresh of the page, even if the content is shared.
Does anyone know how to fix it?

Thanks, Albertone.

Ho trovato questo nei log:

2013-02-18 23:46:10,334 [CKServer1][Thread:46][ERROR] DotNetNuke.Modules.Journal.ServicesController - System.InvalidOperationException: Sequence contains more than one element
at System.Linq.Enumerable.Single[TSource](IEnumerable`1 source)
at System.Linq.Queryable.Single[TSource](IQueryable`1 source)
at DotNetNuke.Services.Journal.Content.CreateContentItem(JournalItem objJournalItem, Int32 tabId)
at DotNetNuke.Services.Journal.JournalControllerImpl.SaveJournalItem(JournalItem journalItem, Int32 tabId)
at DotNetNuke.Modules.Journal.ServicesController.Create(CreateDTO postData)

can be useful?
Thanks, Albertone.

To complete the information I report the error message from the log:

2013-02-19 09:30:13,452 [CKServer1][Thread:14][ERROR] DotNetNuke.Modules.Journal.ServicesController - System.InvalidOperationException: Sequence contains more than one element
   at System.Linq.Enumerable.Single[TSource](IEnumerable`1 source)
   at System.Linq.Queryable.Single[TSource](IQueryable`1 source)
   at DotNetNuke.Services.Journal.Content.CreateContentItem(JournalItem objJournalItem, Int32 tabId)
   at DotNetNuke.Services.Journal.JournalControllerImpl.SaveJournalItem(JournalItem journalItem, Int32 tabId)
   at DotNetNuke.Modules.Journal.ServicesController.Create(CreateDTO postData)

Thanks, Alberto.