Problems with videos on-Demand

[admadureira]

Hello friends, this occurring are problems with my videos on-Demand.
Broadcast live, when I watch in on-Demand, the video simply does not run or run only a few seconds and a look below some of the videos that are giving this problem

http://www.livestream.com/admadureir...4-783b4611c310

What will be the problem? I need the solution

I await answers from anyone who can help me ..
A hug, God bless you!