Error when opening SyncTrayzor

[mat981]

SyncTrayzor was doing well until yesterday. Now it doesn't open. I have Avast Free Antivirus and I got a notification from it about your CefSharp.BrowserSubprocess.exe (some 2 or 3 days ago, and by then SyncTrayzor kept working). I didn't quarantined nothing by then. I now checked and no related file is actually on quarantine.

Error message:

Version: 1.1.29.0; Variant: Installed; Arch: Amd64
Path: C:\Program Files\SyncTrayzor\SyncTrayzor.exe
System.IO.FileNotFoundException: CefSettings.BrowserSubprocessPath not found.
Nome do arquivo: 'C:\Program Files\SyncTrayzor\CefSharp.BrowserSubprocess.exe'
   em CefSharp.Cef.Initialize(CefSettingsBase cefSettings, Boolean performDependencyCheck, IApp cefApp)
   em SyncTrayzor.Pages.ViewerViewModel.OnInitialActivate()
   em Stylet.Screen.<Stylet.IScreenState.Activate>b__35_0(ScreenState oldState, ScreenState newState)
   em Stylet.Screen.SetState(ScreenState newState, Action`2 changedHandler)
   em Stylet.ScreenExtensions.<>c__DisplayClass4_0.<ActivateWith>b__0(Object o, ActivationEventArgs e)
   em System.EventHandler`1.Invoke(Object sender, TEventArgs e)
   em Stylet.Screen.<Stylet.IScreenState.Activate>b__35_0(ScreenState oldState, ScreenState newState)
   em Stylet.Screen.SetState(ScreenState newState, Action`2 changedHandler)
   em Stylet.ScreenExtensions.TryActivate(Object screen)
   em Stylet.WindowManager.WindowConductor..ctor(Window window, Object viewModel)
   em Stylet.WindowManager.CreateWindow(Object viewModel, Boolean isDialog, IViewAware ownerViewModel)
   em Stylet.WindowManager.ShowWindow(Object viewModel)
   em Stylet.BootstrapperBase.Start(String[] args)
   em System.Windows.Application.OnStartup(StartupEventArgs e)
   em System.Windows.Application.<.ctor>b__1_0(Object unused)
   em System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
   em System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)

[mat981]

#803 (comment)

Sorry, there was already some answer up there. Anyway, I can't guess why some .exe file would vanish from the program folder.