Error When deleting a measure

Hi,i'm facning an issue when try to delete any measure, i get the error "Object reference not set to an instance of an object."

here is the detailed error :

Feedback Type:
Frown (Error)

Error Message:
Object reference not set to an instance of an object.

Stack Trace:
   at Microsoft.PowerBI.Client.Windows.PowerBIQueryExtensions.LoadToModelAsTableDisabled(Query query)
   at Microsoft.PowerBI.Client.Windows.QueriesExtensions.ShouldLoadAsTable(Query query)
   at Microsoft.PowerBI.Client.Windows.Modeling.LoadToModelPreparer.<>c__DisplayClass1_0.<Prepare>b__0(Query q)
   at System.Linq.Enumerable.WhereEnumerableIterator`1.MoveNext()
   at System.Linq.Enumerable.<ExceptIterator>d__73`1.MoveNext()
   at System.Collections.Generic.List`1..ctor(IEnumerable`1 collection)
   at System.Linq.Enumerable.ToList[TSource](IEnumerable`1 source)
   at Microsoft.PowerBI.Client.Windows.Modeling.LoadToModelPreparer.Prepare(Report report, ModelingSettings modelingSettings, IModelingSession modelingSession, IRelatedQueriesProvider relatedQueriesProvider, IEnumerable`1 inputQueriesToLoad, IEnumerable`1 inputQueriesRequiringTableDefinitionGeneration, IEnumerable`1 inputQueriesToEvaluateForFoldedArtifacts, IEnumerable`1 inputQueriesToSynchronizeOnly, String globalPipeName, Boolean isV3FeatureSwitchEnabled)
   at Microsoft.PowerBI.Client.Windows.Modeling.Hosting.ModelingService.TryPrepareLoadToModel(Report report, ModelChange modelChangeToExecuteBeforeSchemaSync, String loadReason, Boolean requireFullDataRefresh, IExceptionHandler exceptionHandler, IPowerBIWindowService windowService, IEnumerable`1 queriesToLoad, IEnumerable`1 queriesRequiringTableDefinitionGeneration, IEnumerable`1 queriesToEvaluateForFoldedArtifacts, IEnumerable`1 queriesToSynchronizeOnly, LoadToModelContext& loadToModelContext)
   at Microsoft.PowerBI.Client.Windows.Modeling.ModelAuthoringRoutingService.<>c__DisplayClass19_0.<<RouteToLocalModel>b__0>d.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.PowerBI.Client.Windows.Modeling.ModelAuthoringRoutingService.<RouteToLocalModel>d__19.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.PowerBI.Client.Windows.IExceptionHandlerExtensions.<HandleAwaitableAsyncExceptions>d__1.MoveNext()

Stack Trace Message:
Object reference not set to an instance of an object.

Invocation Stack Trace:
   at Microsoft.Mashup.Host.Document.ExceptionExtensions.GetCurrentInvocationStackTrace()
   at Microsoft.Mashup.Client.UI.Shared.StackTraceInfo..ctor(String exceptionStackTrace, String invocationStackTrace, String exceptionMessage)
   at Microsoft.PowerBI.Client.Windows.Telemetry.PowerBIUserFeedbackServices.GetStackTraceInfo(Exception e)
   at Microsoft.PowerBI.Client.Windows.Telemetry.PowerBIUserFeedbackServices.ReportException(IWindowHandle activeWindow, IUIHost uiHost, FeedbackPackageInfo feedbackPackageInfo, Exception e, Boolean useGDICapture)
   at Microsoft.Mashup.Client.UI.Shared.UnexpectedExceptionHandler.<>c__DisplayClass14_0.<HandleException>b__0()
   at Microsoft.Mashup.Client.UI.Shared.UnexpectedExceptionHandler.HandleException(Exception e)
   at Microsoft.PowerBI.Client.Windows.Utilities.UIBlockingAwareExceptionHandler.HandleException(Exception e)
   at Microsoft.PowerBI.Client.Windows.IExceptionHandlerExtensions.<HandleAwaitableAsyncExceptions>d__1.MoveNext()
   at System.Runtime.CompilerServices.AsyncTaskMethodBuilder.Start[TStateMachine](TStateMachine& stateMachine)
   at Microsoft.PowerBI.Client.Windows.IExceptionHandlerExtensions.HandleAwaitableAsyncExceptions(IExceptionHandler exceptionHandler, Func`1 asyncFunc)
   at Microsoft.Practices.Prism.Commands.DelegateCommandBase.<Execute>d__10.MoveNext()
   at System.Runtime.CompilerServices.AsyncTaskMethodBuilder.Start[TStateMachine](TStateMachine& stateMachine)
   at Microsoft.Practices.Prism.Commands.DelegateCommandBase.Execute(Object parameter)
   at Microsoft.Practices.Prism.Commands.DelegateCommand`1.<Execute>d__5.MoveNext()
   at System.Runtime.CompilerServices.AsyncTaskMethodBuilder.Start[TStateMachine](TStateMachine& stateMachine)
   at Microsoft.Practices.Prism.Commands.DelegateCommand`1.Execute(T parameter)
   at Microsoft.PowerBI.Client.Windows.Commands.CompositeCommand`1.Execute(ICommand command, Object parameter)
   at Microsoft.Practices.Prism.Commands.CompositeCommand.Execute(Object parameter)
   at Microsoft.PowerBI.Client.Windows.Commands.CompositeCommand`1.Execute(T parameter)
   at Microsoft.PowerBI.Client.Windows.CommandStoreHostService.<>c__DisplayClass13_0.<Execute>b__0()
   at Microsoft.Mashup.Host.Document.ExceptionHandlerExtensions.HandleExceptions(IExceptionHandler exceptionHandler, Action action)
   at System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor)
   at System.Reflection.RuntimeMethodInfo.UnsafeInvokeInternal(Object obj, Object[] parameters, Object[] arguments)
   at System.Delegate.DynamicInvokeImpl(Object[] args)
   at System.Windows.Forms.Control.InvokeMarshaledCallbackDo(ThreadMethodEntry tme)
   at System.Windows.Forms.Control.InvokeMarshaledCallbackHelper(Object obj)
   at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
   at System.Windows.Forms.Control.InvokeMarshaledCallback(ThreadMethodEntry tme)
   at System.Windows.Forms.Control.InvokeMarshaledCallbacks()
   at System.Windows.Forms.Control.WndProc(Message& m)
   at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
   at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg)
   at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg)
   at System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(IntPtr dwComponentID, Int32 reason, Int32 pvLoopData)
   at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)
   at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)
   at System.Windows.Forms.Form.ShowDialog(IWin32Window owner)
   at Microsoft.Mashup.Client.UI.Windows.DialogWindowBase.ShowModal(IWindowHandle windowHandle)
   at Microsoft.Mashup.Client.UI.Shared.WebDialogs.WebDialog.<>n__0(IWindowHandle owner)
   at Microsoft.Mashup.Client.UI.Shared.WindowManager.ShowModal[T](T dialog, Func`1 showModalFunction)
   at Microsoft.PowerBI.Client.Program.<>c__DisplayClass1_0.<Main>b__1()
   at Microsoft.PowerBI.Client.Windows.IExceptionHandlerExtensions.<>c__DisplayClass3_0.<HandleExceptionsWithNestedTasks>b__0()
   at Microsoft.Mashup.Host.Document.ExceptionHandlerExtensions.HandleExceptions(IExceptionHandler exceptionHandler, Action action)
   at Microsoft.PowerBI.Client.Program.Main(String[] args)


PowerBINonFatalError:
{"AppName":"PBIDesktop","AppVersion":"2.84.701.0","ModuleName":"Microsoft.PowerBI.Client.Windows.dll","Component":"Microsoft.PowerBI.Client.Windows.PowerBIQueryExtensions","Error":"System.NullReferenceException","MethodDef":"LoadToModelAsTableDisabled","ErrorOffset":"0"}


Model Default Mode:
Import

Model Version:
PowerBI_V3

Is Report V3 Models Enabled:
True


Enabled Preview Features:
PBI_NewWebTableInference
PBI_ImportTextByExample
PBI_qnaLiveConnect
PBI_dataSearchCuration
PBI_azureMapVisual

Disabled Preview Features:
PBI_shapeMapVisualEnabled
PBI_SpanishLinguisticsEnabled
PBI_inlineExplore
PBI_v3ModelsPreview
PBI_dataPointLassoSelect

Disabled DirectQuery Options:
TreatHanaAsRelationalSource

Cloud:
GlobalCloud