Sound on button click does not work after certain no of times

Thanks so much @tatiang for the new code, I learnt a new way of doing the same functionality with such a less code. But unfortunately the new code also stops playing the sound after a certain number of times while testing on android phone with live testing feature but it plays all along on testing it on web preview on laptop, even the earlier code I tested works well on web preview on laptop. So , can it be debugged ?