Don't know if this is related, but it hasn't happened before today:
This morning, the portal Login.aspx is giving an error:
Code:
Value cannot be null.
Parameter name: source
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.ArgumentNullException: Value cannot be null.
Parameter name: source
Source Error:
An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.
Stack Trace:
(ArgumentNullException: Value cannot be null.
Parameter name: source)
System.Linq.Enumerable.Count(IEnumerable`1 source, Func`2 predicate) +310
HAP.Web.Login.Page_Load(Object sender, EventArgs e) in n:\Visual Studio 2010\Projects\CHS Extranet\HAP.Web\Login.aspx.cs:23
System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +25
System.Web.UI.Control.LoadRecursive() +116
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +2750
A restart of the IIS service cleared it. If it occurs again, i'll do some event log / firebug debugging