Video won't play (Black screen)

[Cajuin]

Every channel i tried to play, I end up with just a black screen and sometime the app even crashed.
When i check the log i see the error below. I don't know if they are related but when i checked the plugins state (about->about plugins) the QtAV mediaplayer is not active. I have the QtAV player installed and can play local movies.

(yasem:4556): GLib-GObject-WARNING **: 23:04:15.415: invalid cast from 'WebKitWebSrc' to 'GstBaseSrc'

** (yasem:4556): CRITICAL **: 23:04:15.415: gst_base_src_is_live: assertion 'GST_IS_BASE_SRC (src)' failed
[WARN ][23:04:15:415] QApplication::exec: Must be called from the main thread
[STUB ][23:04:15:415] : Status changed: QMediaPlayer::LoadingMedia

I'm using Ubuntu desktop 18.04, i have ffmpeg and libav and other additional packages installed.

How can i solve the black screen issue?
Also how can i activate the QtAV mediaplayer and is the really necessary in order to play the channels?

[senkron24]

same problem on my windows 10 pc black screen :(( wont play anything just get on play black screen :(((#

its nice projeckt hope sambudy can countionue ...