[BlackxRam]

Originally Posted by NickTheGreek

Assuming that you've correct the follow 2 values:

1. YouTUBE id and NOT the full URL in the video that you post
2. The server path to .../mediagallery/photos

it's easy to find if its the mod's error or YouTUBE error. In details:

YouTUBE has some links for retrieving the video's thumb. The URL looks like:
https://i3.ytimg.com/vi/...YouTUBEid...resdefault.jpg

The last is the type of thumb. In this case is Maximum Resolution. Other possible values are:

• hqdefault.jpg for High Quality
• mqdefault.jpg for Medium Quality ...and...
• sddefault.jpg for Standard Definition

Most often the last one (even in not so good quality) works:
https://i3.ytimg.com/vi/...YouTUBEid...../sddefault.jpg

If you want to use this type, you can change media_usercp.php line 374:
From:

$videourl = 'https://i3.ytimg.com/vi/'.$video.'/maxresdefault.jpg';

Change to:

$videourl = 'https://i3.ytimg.com/vi/'.$video.'/sddefault.jpg';

the media_usercp.php seems to be broken. I haven't made any edits but i noticed when you browse to it from the My Media area, the page is just a WHITE page.