Hello i have a problem..

my code

Initialize TaskExecuting

[RuntimeLevel(MinLevel = RuntimeLevel.Run)]
public class SubscribeComposer : IUserComposer {
    public void Compose(Composition composition) {
      composition.Components().Append<TaskExecutingComponent>();
    }
}

TaskExecuting class

public class TaskExecutingComponent : IComponent
{
  ...
    public TaskExecutingComponent(IProfilingLogger logger, IMacroRenderer macroRenderer, IUmbracoDatabaseService dataBaseService, IScopeProvider scopeProvider, UmbracoMapper umbracoMapper, SubscribeConfiguration config, IMacroService macroService, IPublishedSnapshotAccessor publishedSnapshotAccessor) {
       ...
    }

    public void Initialize() {
        int delayBeforeWeStart = 60000;
        int howOftenWeRepeat = 60000; 

        var task = new Task(_sharePriceRunnerRunner,
            delayBeforeWeStart,
            howOftenWeRepeat,
            _logger,
            _dataBaseService,
            _scopeProvider,
            _macroRenderer,
            _umbracoMapper,
            _config,
            _macroService,
            _publishedSnapshotAccessor);

        _sharePriceRunnerRunner.TryAdd(task);
    }

    public void Terminate()
    {
    }
}

And with problem moment

public class Task : RecurringTaskBase {
    ...

    public Task(IBackgroundTaskRunner<RecurringTaskBase> runner, int delayBeforeWeStart, int howOftenWeRepeat, IProfilingLogger logger, IUmbracoDatabaseService dataBaseService, IScopeProvider scopeProvider, IMacroRenderer macroRenderer, UmbracoMapper umbracoMapper, SubscribeConfiguration config, IMacroService macroService, IPublishedSnapshotAccessor publishedSnapshotAccessor)
        : base(runner, delayBeforeWeStart, howOftenWeRepeat) {
        _...
    }

    public override bool PerformRun() {
            var PageId = 999; // This page is present
        var macro = _macroService.GetById(task.MacrosId);
        var macro_params = _umbracoMapper.Map<IEnumerable<MacroParameter>>(macro);
        var maxro_param_val = new Dictionary<string, object>();

    maxro_param_val.Add("getFrom", DateTime.Now.Date());

        var content_val = _publishedSnapshotAccessor.PublishedSnapshot.Content.GetById(PageId);
        var macro_props = maxro_param_val.ToDictionary(
            x => x.Key,
            i => i.Value is string ? HttpUtility.HtmlDecode(i.Value.ToString()) : i.Value);

        var result = _macroRenderer.Render(macro.Alias, content_val, macro_props).GetAsText();

        return true;
    }

And Exception

System.NullReferenceException: 
in _publishedSnapshotAccessor.PublishedSnapshot.Content.GetById(_config.SubscribeMessage.SubscribePageId.Value);

if i use other methods for recive Content i have problem with content in _macroRenderer.Render