我是C# MVC，在啟動後有透過在Program.cs中加入了ScheduledTasks.Start()
也有在斷點偵測到有運行到ScheduledTasks.Start()
但時間到的時候卻不會執行Execute()的這段function
想請教我的code是不是有問題，有哪裡需要修改的地方
感謝

public class ScheduledTasks
{
    public static async void Start()
    {
        // 設定定時任務
        IScheduler scheduler = await StdSchedulerFactory.GetDefaultScheduler();
        await scheduler.Start();

        // 定義工作
        IJobDetail job = JobBuilder.Create<YourJobClass>()
            .WithIdentity("jobName", "groupName")
            .Build();

        // 定義觸發器
        ITrigger trigger = TriggerBuilder.Create()
            .WithIdentity("triggerName", "groupName")
            .WithDailyTimeIntervalSchedule(
                x => x.StartingDailyAt(TimeOfDay.HourAndMinuteOfDay(15, 00))
                        .EndingDailyAfterCount(1))
            .Build();

        // 排程工作
        await scheduler.ScheduleJob(job, trigger);
    }
}

public class YourJobClass : IJob
{
    private readonly DBmanager _db;
    public YourJobClass(DBmanager db) => _db = db;

    public async Task Execute(IJobExecutionContext context)
    {
        await Task.Run(() =>
        {
            _db.DayBackupERPToCRM();
        });
    }
}