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The control type 'Sercel.SharePoint.Internet.Library.CustomControl.NewsDateTimeField' is not allowed on this page. The type Sercel.SharePoint.Internet.Library.CustomControl.NewsDateTimeField, Sercel.SharePoint.Internet, Version=1.0.0.0, Culture=neutral, PublicKeyToken=433364e4b398cf37 could not be found or it is not registered as safe.