WorkManger doesn't trigger after manually stopped- Kotlin

I want to use workMager to do some work every 15min,at the same time I want to stop workManger when I clicked on the button "StopThread" below is my Code:

    val workManager = WorkManager.getInstance(applicationContext)

    val workRequest = PeriodicWorkRequest.Builder(
        RandomNumberGeneratorWorker::class.java,
        15,
        TimeUnit.MINUTES
    ).addTag("API_Worker")
     .build()


    binding.buttonThreadStarter.setOnClickListener {
        workManager.enqueue(workRequest)
    }

    binding.buttonStopthread.setOnClickListener {
        workManager.cancelAllWorkByTag("API_Worker")
    }

And this is the RandomNumberGeneratorWorker

class RandomNumberGeneratorWorker(
    context: Context,
    params: WorkerParameters
) :
    Worker(context, params) {

    private val MIN = 0
    private val MAX = 100
    private var mRandomNumber = 0

    override fun doWork(): Result {
        Log.d("worker_info","Job Started")
        startRandomNumberGenerator();
        return Result.success();
    }

    override fun onStopped() {
        super.onStopped()
        Log.i("worker_info", "Worker has been cancelled")
    }

    private fun startRandomNumberGenerator() {
        Log.d("worker_info","startRandomNumberGenerator triggered")
        var i = 0
        while (i < 100 && !isStopped) {
            try {
                Thread.sleep(1000)

                    mRandomNumber = (Math.random() * (MAX - MIN + 1)).toInt() + MIN
                    Log.i(
                        "worker_info",
                        "Thread id: " + Thread.currentThread().id + ", Random Number: " + mRandomNumber
                    )
                    i++

            } catch (e: InterruptedException) {
                Log.i("worker_info", "Thread Interrupted")
            }
        }
    }
}

The issue that I'm facing is when I stopped the workManger it didn't work again when I clicked on buttonThreadStarter

I did a little research and I found that I can start-stop-start..etc workManger with the code below :

   val workRequest =  OneTimeWorkRequest.from(RandomNumberGeneratorWorker::class.java)

    binding.buttonThreadStarter.setOnClickListener {
       
         workManager.beginUniqueWork("WorkerName",ExistingWorkPolicy.REPLACE,workRequest)
    }

    binding.buttonStopthread.setOnClickListener {
        workManager.cancelAllWork()
    }

but as you can see it's working when I used OneTimeWorkRequest and with that, I can't repeat the work every 15 mins , Any suggestion in how to resolve this issue