I've recently inherited a Kentico CMS site running Kentico 10. I have no background with Kentico CMS so this may be a trivial issue. Our users noticed they were getting a generic error page when trying to edit an email template through the interface. When I was clicking around in the backend, I also noticed I'd encounter the same generic error when visiting @Email Queue@ -@ @Send Email@. The tail end of the exception looks like the following: ...
at System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter)
at System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children)
at System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter)
at System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children)
at CMS.UIControls.CMSPage.Render(HtmlTextWriter writer)
at System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter)
at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
Message: An entry with the same key already exists.
Exception type: System.ArgumentException
Stack trace:
at System.Collections.Specialized.ListDictionary.Add(Object key, Object value)
at System.Web.UI.ClientScriptManager.RegisterExpandoAttribute(String controlId, String attributeName, String attributeValue, Boolean encode)
at System.Web.UI.ScriptRegistrationManager.RegisterExpandoAttribute(Control control, String controlId, String attributeName, String attributeValue, Boolean encode)
EventUrl: /CMSModules/AdminControls/Pages/UIPage.aspx?elementguid=64da9a5b-7f26-4b49-8d40-3b67b90b0ad9@siteid=-4@objectid=766@displaytitle=false
I tried turning on debugging but the resulting logs didn't point to much. Any tips for obvious areas to look into?
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