Blank Screen after the video is played

Hi,
thank you for this brilliant plugin!
I discovered a problem: As soon as I use Images instead of Video previews, the video screen turns black after I clicked on an other Image to start an other video (I have 6 videos per page):
<a href=”http://martinkrenn.net/the_political_sphere_in_art_practices/?cat=1
“>
I hope you can help me!
Thanks a million!
Mart

https://wordpress.org/plugins/featured-video-plus/