Exception: System.ArgumentException

[thiagolaureano]

exception occurred in windows 7 with dotnet runtime 4.8:
em System.IO.FileSystemWatcher.set_Path(System.String)
em SmartHunter.Core.FileContainer.WatchFile(Boolean)
em SmartHunter.Core.Config.ConfigContainer`1[[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]]..ctor(System.String)
em SmartHunter.Game.Helpers.ConfigHelper.get_Main()
em SmartHunter.Game.Helpers.ConfigHelper.EnsureConfigs()
em SmartHunter.App.OnStartup(System.Windows.StartupEventArgs)
em System.Windows.Application.<.ctor>b__1_0(System.Object)
em System.Windows.Threading.ExceptionWrapper.InternalRealCall(System.Delegate, System.Object, Int32)
em System.Windows.Threading.ExceptionWrapper.TryCatchWhen(System.Object, System.Delegate, System.Object, Int32, System.Delegate)
em System.Windows.Threading.DispatcherOperation.InvokeImpl()
em MS.Internal.CulturePreservingExecutionContext.CallbackWrapper(System.Object)
em System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
em System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
em System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object)
em MS.Internal.CulturePreservingExecutionContext.Run(MS.Internal.CulturePreservingExecutionContext, System.Threading.ContextCallback, System.Object)
em System.Windows.Threading.DispatcherOperation.Invoke()
em System.Windows.Threading.Dispatcher.ProcessQueue()
em System.Windows.Threading.Dispatcher.WndProcHook(IntPtr, Int32, IntPtr, IntPtr, Boolean ByRef)
em MS.Win32.HwndWrapper.WndProc(IntPtr, Int32, IntPtr, IntPtr, Boolean ByRef)
em MS.Win32.HwndSubclass.DispatcherCallbackOperation(System.Object)
em System.Windows.Threading.ExceptionWrapper.InternalRealCall(System.Delegate, System.Object, Int32)
em System.Windows.Threading.ExceptionWrapper.TryCatchWhen(System.Object, System.Delegate, System.Object, Int32, System.Delegate)
em System.Windows.Threading.Dispatcher.LegacyInvokeImpl(System.Windows.Threading.DispatcherPriority, System.TimeSpan, System.Delegate, System.Object, Int32)
em MS.Win32.HwndSubclass.SubclassWndProc(IntPtr, Int32, IntPtr, IntPtr)
em MS.Win32.UnsafeNativeMethods.DispatchMessage(System.Windows.Interop.MSG ByRef)
em System.Windows.Threading.Dispatcher.PushFrameImpl(System.Windows.Threading.DispatcherFrame)
em System.Windows.Application.RunDispatcher(System.Object)
em System.Windows.Application.RunInternal(System.Windows.Window)
em SmartHunter.App.Main()