MyBB Community Forums

for anyone who does not have it working do this:
in that code provided you may see this:

new Audio(rootpath + '/images/dvz_shoutbox.mp3');

replace the rootpath + ' with your forum's url, the line should look like this:

new Audio('https://shurik-t.ml/images/dvz_shoutbox.mp3');

and it does not have to be in Images directory, it can be in other directory, such as Assets/Audio/:

new Audio('https://shurik-t.ml/Assets/Audio/dvz_shoutbox.mp3');