Video embedded on my website hosted on Mega is neither advancing nor delaying.

[ZaBiErU]

I am testing videos hosted on Mega on my website. The videos play well, but the issue is that the video restarts when trying to fast forward or rewind using the time bar.

You can see the test page I created to demonstrate this issue here: https://videos.2000peliculassigloxx.com/prueba/

In my cpanel, I have a folder with two files:
---------------------------
index.php:

<?php
require_once('mega.class.php');
$megafile = new MEGA('http://mega.nz/#'.$_GET['id']);
//$megafile->download();
// OR
$megafile->stream_download(); // to download using streams
?>
--------------------------
mega.class.php

<?php
/**
* Mega.nz downloader
* Require mcrypt, curl
* @license GNU GPLv3 http://opensource.org/licenses/gpl-3.0.html
*/
class MEGA {
// Methods and properties are defined here... (This includes functions to handle queries to Mega servers, download files, decrypt data, etc.)
}
?>
-------------------------------------------
I think the issue lies in tweaking something in the mega.class.php file, but I'm not sure what needs to be changed. As mentioned earlier, my goal is to allow users to fast forward or rewind the video to specific minutes as they wish.