WatchDog kill When call [BGTaskScheduler submitTaskRequest]

- (void)applicationDidEnterBackground:(UIApplication *)application {

BGAppRefreshTaskRequest *refreshRequest = [[BGAppRefreshTaskRequest alloc] initWithIdentifier:kBGRefreshTaskIdentifier];

@try {

NSError *error ;

[[BGTaskScheduler sharedScheduler] submitTaskRequest:refreshRequest error:&error];

} @catch (NSException *exception) {

}

}