App crashes when vitamio play any stream video link second time in Iphone

Here is my code describes how I play a video using vitamio:

if(!mMPayer) {
mMPayer = [VMediaPlayer sharedInstance];
[mMPayer setupPlayerWithCarrierView:self.televisionView withDelegate:self];
}
    [self setupObservers];
    [mMPayer setDataSource:streamURL header:nil];
    [mMPayer prepareAsync];

In the delegate method I have started to play a video:

- (void)mediaPlayer:(VMediaPlayer *)player didPrepared:(id)arg
{
    [player start];
}

- (void)mediaPlayer:(VMediaPlayer *)player playbackComplete:(id)arg
{
    //[mMPayer unSetupPlayer];
    [player reset];
}

It can stream a video perfectly at the first time, but when I come back to the view controller and try to play again the app crashes with this message:

[Vitamio[MediaPlayer] Error] {-[VMediaPlayer setupPlayerWithCarrierView:withDelegate:]:172} Called INVALID : Player have setuped!
    [Vitamio[MediaPlayer] Error] {-[VMediaPlayer setDataSource:header:]:271} Called in INVALID STATE : VMPlayerStateStarted (0x40)
    [Vitamio[MediaPlayer] Error] {-[VMediaPlayer prepareAsync]:301} Called in INVALID STATE : VMPlayerStateStarted (0x40)

I have tried using

[mMPayer reset];
[mMPayer unSetupPlayer];

in the viewDidDissappear but couldnt solve the problem, can any body help? as I am stuck here for more than 3 days