Problems on mobile

Hi, I installed version 1.4.21, and I put the slide plus a video on the PC does not give me problems but on the smartphone, the video is not displayed and not displayed even the titles and descriptions of the slide.
someone would know help me?
Thank you

Hi
Please give me your url and tell me how you have added the video : on youtube, or else
CEd

it is a youtube video. the url you've sent in private

you've taken a look at the website?

I have not received your email
please use the contact form here and remind me the url of this thread
www.joomlack.fr/contact

Sent!!