How about using this as alternative

[ttx99]

topstreams.info/nba/ {insert nba team} it is an official nba league pass stream feed. It depends on the what the schedule is so for example the Celtics vs Hawks are playing the link would be https://topstreams.info/nba/celtics or https://topstreams.info/nba/hawks . I hope you consider making a script for this one cause this stream is super stable. I can even play it on mpv after viewing page source in firefox and searching m3u link.

if you are familiar with paid iptv services this would be equivalent to their league pass.