Missing some picture, won't work when access by cellular or HP (Streaming)

[Dans]

Hi DjSoft,
I have an issue, I added your code for a streaming, when I used a PC or Notebook all player working very well, but when I used a Cellular or Tab to accessing my streaming website, I have missing 3 components, there is missing : speaker-volume slider and speaker maximum volume, only button play and pause is working.
I tried to make with local code, but it won't work.

Here is a streaming link

<div class='rbcloud_playerlegacy' id='rbcloud_player4714'></div>

This a sample link that what I mean, I didn't added complete, due I really sure you know this Widgets Player

<script src='https://c21.radioboss.fm/w/player.js?u=https%3A%2F%2Fc21.radioboss.fm'></script>

Can you please provide some info according this to solved.

Thanks,
Dans.