System.InvalidOperationException: Timeout expired.  The timeout period elapsed prior to obtaining a connection from the pool.  This may have occurred because all pooled connections were in use and max pool size was reached.
   at System.Data.ProviderBase.DbConnectionFactory.TryGetConnection(DbConnection owningConnection, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal oldConnection, DbConnectionInternal& connection)
   at System.Data.ProviderBase.DbConnectionInternal.TryOpenConnectionInternal(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource`1 retry, DbConnectionOptions userOptions)
   at System.Data.SqlClient.SqlConnection.TryOpenInner(TaskCompletionSource`1 retry)
   at System.Data.SqlClient.SqlConnection.TryOpen(TaskCompletionSource`1 retry)
   at System.Data.SqlClient.SqlConnection.Open()
   at NPoco.Database.OpenSharedConnectionImp(Boolean isInternal)
   at NPoco.Database.BeginTransaction(IsolationLevel isolationLevel)
   at Umbraco.Core.Scoping.Scope.get_Database() in D:\a\1\s\src\Umbraco.Core\Scoping\Scope.cs:line 243
   at Umbraco.Core.Scoping.Scope.ReadLock(Int32[] lockIds) in D:\a\1\s\src\Umbraco.Core\Scoping\Scope.cs:line 490
   at Umbraco.Core.Services.Implement.ContentTypeServiceBase`3.GetAll(Int32[] ids) in D:\a\1\s\src\Umbraco.Core\Services\Implement\ContentTypeServiceBaseOfTRepositoryTItemTService.cs:line 250
   at Umbraco.Web.PropertyEditors.NestedContentPropertyEditor.NestedContentValues.<>c__DisplayClass1_0.<.ctor>b__0() in D:\a\1\s\src\Umbraco.Web\PropertyEditors\NestedContentPropertyEditor.cs:line 348
   at System.Lazy`1.CreateValue()
   at System.Lazy`1.LazyInitValue()
   at Umbraco.Web.PropertyEditors.NestedContentPropertyEditor.NestedContentValues.GetElementType(NestedContentRowValue item) in D:\a\1\s\src\Umbraco.Web\PropertyEditors\NestedContentPropertyEditor.cs:line 353
   at Umbraco.Web.PropertyEditors.NestedContentPropertyEditor.NestedContentValues.GetPropertyValues(Object propertyValue) in D:\a\1\s\src\Umbraco.Web\PropertyEditors\NestedContentPropertyEditor.cs:line 382
   at Umbraco.Web.PropertyEditors.NestedContentPropertyEditor.NestedContentPropertyValueEditor.FromEditor(ContentPropertyData editorValue, Object currentValue) in D:\a\1\s\src\Umbraco.Web\PropertyEditors\NestedContentPropertyEditor.cs:line 221
   at Our.Umbraco.DocTypeGridEditor.Helpers.DocTypeGridEditorHelper.ConvertValue(String id, String contentTypeAlias, String dataJson)
   at Umbraco.Core.Cache.AppCacheExtensions.<>c__DisplayClass5_0`1.<GetCacheItem>b__0() in D:\a\1\s\src\Umbraco.Core\Cache\AppCacheExtensions.cs:line 62
   at Umbraco.Core.Cache.FastDictionaryAppCacheBase.<>c__DisplayClass21_0.<GetSafeLazy>b__0() in D:\a\1\s\src\Umbraco.Core\Cache\FastDictionaryAppCacheBase.cs:line 285
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at Umbraco.Core.Cache.HttpRequestAppCache.Get(String key, Func`1 factory) in D:\a\1\s\src\Umbraco.Core\Cache\HttpRequestAppCache.cs:line 81
   at Umbraco.Core.Cache.AppCacheExtensions.GetCacheItem[T](IAppCache provider, String cacheKey, Func`1 getCacheItem) in D:\a\1\s\src\Umbraco.Core\Cache\AppCacheExtensions.cs:line 62
   at ASP._Page_app_plugins_doctypegrideditor_render_DocTypeGridEditor_cshtml.Execute() in D:\home\site\wwwroot\app_plugins\doctypegrideditor\render\DocTypeGridEditor.cshtml:line 26
   at System.Web.WebPages.WebPageBase.ExecutePageHierarchy()
   at System.Web.Mvc.WebViewPage.ExecutePageHierarchy()
   at System.Web.WebPages.WebPageBase.ExecutePageHierarchy(WebPageContext pageContext, TextWriter writer, WebPageRenderingBase startPage)
   at Umbraco.Web.Mvc.ProfilingView.Render(ViewContext viewContext, TextWriter writer) in D:\a\1\s\src\Umbraco.Web\Mvc\ProfilingView.cs:line 25
   at System.Web.Mvc.Html.PartialExtensions.Partial(HtmlHelper htmlHelper, String partialViewName, Object model, ViewDataDictionary viewData)
   at ASP._Page_Views_Partials_grid_editors_Base_cshtml.Execute() in D:\home\site\wwwroot\Views\Partials\grid\editors\Base.cshtml:line 20