Shoutbox

there's a problem i have with the script is that it only display the toast when no other pop up is displayed, it won't display on top of another window (sometimes it even displays two messages at the same time)
also i problem for the script is that it only works once in a while, meaning it runs once, then it has to wait for a while for it to be functional again. i tested this by asking my friend to open and close a chat window with me, and it works for the first time and stopped working. and works again a while after