SS IPTV

Hi, I have some steaming work fine through PC Potplayer, but when I playing in app, 1st one had blank screen while 2nd one just noise shown, it may not SSIPTV problem but Amazon Fire TV Stick? may any advise from you all can solve it?

Thanks in advance.

My player: Amazon Fire TV Stick 4K
Streaming 1: https://nettvpro.live/hls/lotustv.php
Streaming 2: http://206.119.173.184/tv/js.php?id=99