I have found a solution in the German forum.
Search the file
/system/modules/videobox/templates/videobox_youtube.html5
Search:
src="<?php echo $this->youtubelink; ?>"
change to:
Type: Posts; User: Soeldner
I have found a solution in the German forum.
Search the file
/system/modules/videobox/templates/videobox_youtube.html5
Search:
src="<?php echo $this->youtubelink; ?>"
change to: