I've sen a fair few of these errors, and just now I noticed a stack of them all together.. about ten in a row and then two hours later another ten or so in a row.

AssemblyVersion: 04.05.03
PortalID: 2
PortalName: EPX Bikes
UserID: -1
UserName:
ActiveTabID: 70
ActiveTabName: News & Events
RawURL: /Default.aspx?tabid=70&error=Value+cannot+be+null.%0d%0aParameter+name%3a+String&content=0
AbsoluteURL: /Default.aspx
AbsoluteURLReferrer:
UserAgent: Mozilla
DefaultDataProvider: DotNetNuke.Data.SqlDataProvider, DotNetNuke.SqlDataProvider
ExceptionGUID: d8fcae32-8928-4949-b45e-930c400c4f88
InnerException: Value cannot be null. Parameter name: String
FileName:
FileLineNumber: 0
FileColumnNumber: 0
Method: System.Number.StringToNumber
StackTrace:
Message: System.ArgumentNullException: Value cannot be null. Parameter name: String at System.Number.StringToNumber(String str, NumberStyles options, NumberBuffer& number, NumberFormatInfo info, Boolean parseDecimal) at System.Number.ParseInt32(String s, NumberStyles style, NumberFormatInfo info) at System.Web.Configuration.HttpCapabilitiesBase.get_MajorVersion() at DotNetNuke.UI.Utilities.ClientAPI.BrowserSupportsFunctionality(ClientFunctionality eFunctionality) at DotNetNuke.UI.WebControls.DNNMenu.get_IsDownLevel() at DotNetNuke.UI.WebControls.DNNMenu.LoadPostedXML() at DotNetNuke.UI.WebControls.DNNMenu.OnInit(EventArgs e) at System.Web.UI.Control.InitRecursive(Control namingContainer) at System.Web.UI.Control.AddedControl(Control control, Int32 index) at System.Web.UI.ControlCollection.Add(Control child) at DotNetNuke.UI.WebControls.SolPartActions.OnInit(EventArgs e) at System.Web.UI.Control.InitRecursive(Control namingContainer) at System.Web.UI.Control.InitRecursive(Control namingContainer) at System.Web.UI.Control.AddedControl(Control control, Int32 index) at System.Web.UI.ControlCollection.Add(Control child) at DotNetNuke.UI.Skins.Skin.InjectModule(Control objPane, ModuleInfo objModule, PortalSettings PortalSettings)
Source:
Server Name: VIR103-13

I can see both DNNMenu and SolpartActions listed in there and so I decided to post it in this forum in case this is actually an issue to be concerned with.

Any comments are appreciated.

rob

Hi Jon,

Yep, that was the compete string as copied out of the log... only "Mozilla" as the agent and no specific referrer. I've just had a good look through the logs today and can't see any repititions of that particular error. I'll report back if they start up again and if there is any variation or additional detail.

Today's error of choice seems to be:

"InnerException: Validation of viewstate MAC failed. If this application is hosted by a Web Farm or cluster, ensure that <machineKey> configuration specifies the same validationKey and validation algorithm. AutoGenerate cannot be used in a cluster.
FileName: "

I get that one every day, and a lot of them today.... but it only ever happens on the page where Active Forums resides, never on other pages. I dont know what actually happens.. whether it causes an error to the visitor, but I think it probably does. I'm not even sure which forum to post that in for advice.