How to check if Audio Stream Exists before start playing?

I'm building a online radio streaming app and so far it stream and play audio on android and ios. But when I started testing my app on ios device (iphone) I found an error.

"File Error - Unable to configure network read stream"

It happens when the network resets and when I resume iphone from the lock mode and try to resume audioPlayer from the pause mode. The audio player plays what left in the buffer and pop above error. Is there a way to check if the audio stream exists?

I also found if I change the pause button operation to "audioPlayer.stop()" and "start()" this error does not occur. Here's my pause\resume button code

pauseResumeButton.addEventListener('click', function() {
 
    if(Ti.Network.online) {
        if (Ti.App.player.paused) {
 
        // I need a condition here to check if audio stream exists before start player.
 
                pauseResumeButton.backgroundImage="/images/pause.png";          
                Ti.App.player.start();      
        }
        else { 
            pauseResumeButton.backgroundImage="/images/play.png";
            Ti.App.player.pause();  
        }
    }
    else {
       Ti.UI.createAlertDialog({
            message: 'Network Offline',
            title: 'Error',
            ok:'Ok'
         }).show(); 
    }
});