MORE > One or more errors occurred. (Object reference not set to an instance of an object.) at System.Threading.Tasks.Task`1.GetResultCore(Boolean waitCompletionNotification) at Warensoft.EntLib.NoSql.Core.QueryCacheManager.Get[T](String category, String key, Func`1 task) in E:\工作\DevlopPrograms\Git\WBS.IR.2020\Warensoft.EntLib\Warensoft.EntLib.NoSql.Core\SYS_QueryCache.cs:line 203 at AspNetCore.Views_Home_Index.ExecuteAsync() in E:\工作\DevlopPrograms\Git\WBS.IR.2020\WBS.IR.Portal\Views\Home\Index.cshtml:line 152