The error message is

ERROR mojoPortal.Web.Global - /ProfileView.aspx?userid=3
System.FormatException: Guid should contain 32 digits with 4 dashes (xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx).
   at System.Guid..ctor(String g)
   at mojoPortal.Business.SiteUser.GetUser(IDataReader reader)
   at mojoPortal.Business.SiteUser.GetUser(Int32 userId)
   at mojoPortal.Business.SiteUser..ctor(SiteSettings settings, Int32 userId)
   at mojoPortal.Web.UI.Pages.ProfileView.LoadSettings()
   at mojoPortal.Web.UI.Pages.ProfileView.Page_Load(Object sender, EventArgs e)
   at System.Web.UI.Control.OnLoad(EventArgs e)
   at mojoPortal.Web.mojoBasePage.OnLoad(EventArgs e)
   at System.Web.UI.Control.LoadRecursive()
   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

The user account has been used for several years and do not have problem,

suddenly it cause exception while login, also the admin cannot view / change the setting of the user.

There are no problem on the other user accounts.

What is the reason and solution(Except for create a new one) for the exception, thank you.

Koe

Thanks Joe,

I have read the mp_Users table, and find that there are the below differences of the user account causing problem (compare to other fine user account):

- EmailChangeGuid: NULL   (other:00000000-0000-0000-0000-000000000000)

- TimeZoneId: NULL  (other: Eastern Standard Time)

- NewEmail: NULL (other: empty)

- EditorPreference: NULL (other: empty)

- FirstName, LastName: NULL (other:empty)

- LastActivityDate: NULL (other: have a time)

I think the first one should be the cause of error? So the problem would be fixed if I change the data to 0000..... , is it?

Thank you.