App stürzt immer bei Crashlytics.start(this); ab

public class SplashActivity extends Activity {


	private static String TAG = SplashActivity.class.getName();
	private static long SLEEP_TIME = 3; // Sleep for some time


	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);


		Crashlytics.start(this);
		this.requestWindowFeature(Window.FEATURE_NO_TITLE); // Removes title bar
		this.getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
				WindowManager.LayoutParams.FLAG_FULLSCREEN); // Removes
																// notification
																// bar


		setContentView(R.layout.splash);


		// Start timer and launch main activity
		IntentLauncher launcher = new IntentLauncher();
		launcher.start();
	}


	private class IntentLauncher extends Thread {
		@Override
		/**
		 * Warten
		 */
		public void run() {
			try {
				// Sleeping
				Thread.sleep(SLEEP_TIME * 1000);
			} catch (Exception e) {
				Log.e(TAG, e.getMessage());
			}


			// Start main activity
			Intent intent = new Intent(SplashActivity.this, MainActivity.class);
			SplashActivity.this.startActivity(intent);
			SplashActivity.this.finish();
		}
	}