The videos are sometimes freezing when I am playing them, how do I prevent this?
This is likely an internet connection issue. At certain times of the day when lots of people in your local area are online at the same time, internet speeds can drop quite suddenly.
If this is causing the videos to freeze then there are steps you can take.
The best thing to do in that circumstance is to pause the video at the start and let it buffer for a couple of minutes.
You can also press the 'cog' icon in the bottom right of the video player and select the lowest number. It'll reduce the quality of the video but it will ensure that it's in sync and not freezing.
This short video explains how to do it: