Server Error in '/' Application. Root element is missing. 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.Xml.XmlException: Root element is missing. 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: [XmlException: Root element is missing.] System.Xml.XmlTextReaderImpl.Throw(Exception e) +88 System.Xml.XmlTextReaderImpl.ParseDocumentContent() +1067 System.Xml.Linq.XDocument.Load(XmlReader reader, LoadOptions options) +60 System.Xml.Linq.XDocument.Load(String uri, LoadOptions options) +99 Umbraco.Core.Services.ApplicationTreeService.LoadXml(Action`1 callback, Boolean saveAfterCallback) +142 Umbraco.Core.Services.ApplicationTreeService.<GetAppTrees>b__0() +158 Umbraco.Core.Cache.<>c__DisplayClass9`1.<GetCacheItem>b__8() +15 System.Lazy`1.CreateValue() +727 System.Lazy`1.LazyInitValue() +184 Umbraco.Core.Cache.HttpRuntimeCacheProvider.GetCacheItem(String cacheKey, Func`1 getCacheItem, Nullable`1 timeout, Boolean isSliding, CacheItemPriority priority, CacheItemRemovedCallback removedCallback, CacheDependency dependency) +893 Umbraco.Core.Cache.HttpRuntimeCacheProvider.GetCacheItem(String cacheKey, Func`1 getCacheItem) +64 Umbraco.Core.Cache.CacheProviderExtensions.GetCacheItem(ICacheProvider provider, String cacheKey, Func`1 getCacheItem) +171 Umbraco.Core.Services.ApplicationTreeService.GetAppTrees() +136 Umbraco.Core.Services.ApplicationTreeService.GetByAlias(String treeAlias) +69 Umbraco.Web.Trees.<>c__DisplayClasse.<ScanTrees>b__1(Tuple`2 x) +56 System.Linq.WhereSelectEnumerableIterator`2.MoveNext() +205 System.Linq.Buffer`1..ctor(IEnumerable`1 source) +162 System.Linq.Enumerable.ToArray(IEnumerable`1 source) +104 Umbraco.Web.Trees.ApplicationTreeRegistrar.ScanTrees(ApplicationContext applicationContext) +465 Umbraco.Core.ApplicationEventHandler.OnApplicationStarted(UmbracoApplicationBase umbracoApplication, ApplicationContext applicationContext) +50 Umbraco.Core.EnumerableExtensions.ForEach(IEnumerable`1 items, Action`1 action) +166 Umbraco.Core.CoreBootManager.Complete(Action`1 afterComplete) +133 Umbraco.Web.WebBootManager.Complete(Action`1 afterComplete) +49 Umbraco.Core.UmbracoApplicationBase.StartApplication(Object sender, EventArgs e) +265 [HttpException (0x80004005): Root element is missing.] System.Web.HttpApplicationFactory.EnsureAppStartCalledForIntegratedMode(HttpContext context, HttpApplication app) +535 System.Web.HttpApplication.RegisterEventSubscriptionsWithIIS(IntPtr appContext, HttpContext context, MethodInfo[] handlers) +166 System.Web.HttpApplication.InitSpecial(HttpApplicationState state, MethodInfo[] handlers, IntPtr appContext, HttpContext context) +169 System.Web.HttpApplicationFactory.GetSpecialApplicationInstance(IntPtr appContext, HttpContext context) +372 System.Web.Hosting.PipelineRuntime.InitializeApplication(IntPtr appContext) +329 [HttpException (0x80004005): Root element is missing.] System.Web.HttpRuntime.FirstRequestInit(HttpContext context) +525 System.Web.HttpRuntime.EnsureFirstRequestInit(HttpContext context) +118 System.Web.HttpRuntime.ProcessRequestNotificationPrivate(IIS7WorkerRequest wr, HttpContext context) +708 Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.7.2623.0