CRASH android com.google.android.gms.location.ActivityRecognitionResult.getProbableActivities()' on a null object reference

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java.lang.RuntimeException: An error occurred while executing doInBackground()
[        ] E/AndroidRuntime(28069): 	at android.os.AsyncTask$4.done(AsyncTask.java:415)
[        ] E/AndroidRuntime(28069): 	at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:383)
[        ] E/AndroidRuntime(28069): 	at java.util.concurrent.FutureTask.setException(FutureTask.java:252)
[        ] E/AndroidRuntime(28069): 	at java.util.concurrent.FutureTask.run(FutureTask.java:271)
[        ] E/AndroidRuntime(28069): 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167)
[        ] E/AndroidRuntime(28069): 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
[        ] E/AndroidRuntime(28069): 	at java.lang.Thread.run(Thread.java:920)
[        ] E/AndroidRuntime(28069): Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'java.util.List com.google.android.gms.location.ActivityRecognitionResult.getProbableActivities()' on a null object reference
[        ] E/AndroidRuntime(28069): 	at dk.cachet.activity_recognition_flutter.ActivityRecognizedService.onHandleIntent(ActivityRecognizedService.java:36)
[        ] E/AndroidRuntime(28069): 	at dk.cachet.activity_recognition_flutter.ActivityRecognizedService.onHandleWork(ActivityRecognizedService.java:30)
[        ] E/AndroidRuntime(28069): 	at androidx.core.app.JobIntentService$CommandProcessor.doInBackground(JobIntentService.java:396)
[        ] E/AndroidRuntime(28069): 	at androidx.core.app.JobIntentService$CommandProcessor.doInBackground(JobIntentService.java:387)
[        ] E/AndroidRuntime(28069): 	at android.os.AsyncTask$3.call(AsyncTask.java:394)
[        ] E/AndroidRuntime(28069): 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)