/ Only execute setAlarmViaAlarmManager when we are running Lollipop+.

app/src/main/java/nodomain/freeyourgadget/gadgetbridge/SleepAlarmWidget.java

@@ -84,7 +84,9 @@ public class SleepAlarmWidget extends AppWidgetProvider {
             GBAlarm alarm = new GBAlarm(0, true, true, Alarm.ALARM_ONCE, hours, minutes);
             alarm.store();
 
+            if (GBApplication.isRunningLollipopOrLater()) {
                 setAlarmViaAlarmManager(context, calendar.getTimeInMillis());
+            }
 
             GB.toast(context,
                     String.format(context.getString(R.string.appwidget_alarms_set), hours, minutes),