Hi, I install a new instance of DNN 7.3.0, then immediately upgraded that to 7.3.1

When I came to sort out the Admin>Site Settings, I got an Error 500

The Event viewer shows:

AssemblyVersion:7.3.1
PortalID:0
PortalName:XXXXXxxx
UserID:1
UserName:XXXXX
ActiveTabID:62
ActiveTabName:Site Settings
RawURL:/Admin/Site-Settings
AbsoluteURL:/Default.aspx
AbsoluteURLReferrer:http://www.XXXXXxxx/Host/Host-Settings/portalid/0
UserAgent:Mozilla/5.0 (Windows NT 6.1; WOW64; rv:30.0) Gecko/20100101 Firefox/30.0
DefaultDataProvider:DotNetNuke.Data.SqlDataProvider, DotNetNuke
ExceptionGUID:6f0b7f87-4eae-49da-9634-6f04bc606839
InnerException:Selection out of range Parameter name: value
FileName:
FileLineNumber:0
FileColumnNumber:0
Method:Telerik.Web.UI.RadComboBox.PerformDataBinding
StackTrace:
Message:
DotNetNuke.Services.Exceptions.PageLoadException: Selection out of range
Parameter name: value ---> System.ArgumentOutOfRangeException: Selection out of range
Parameter name: value
   at Telerik.Web.UI.RadComboBox.PerformDataBinding(IEnumerable dataSource)
   at Telerik.Web.UI.RadComboBox.PerformSelect()
   at DotNetNuke.Web.UI.WebControls.DnnSkinComboBox.OnLoad(EventArgs e)
   at System.Web.UI.Control.LoadRecursive()
 etc..
   at System.Web.UI.Control.LoadRecursive()
   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
   --- End of inner exception stack trace ---

Which suggests an issue with the Telerik library??

I' can't progress with this standard installation

Help!! :)

regards
Duncan

Thanks, William.

I followed that advice and it then worked.

Appreciate your response.

regards,
Duncan.