Why does my youtube freeze on windows phone?

[WPCentral Question]

Just this night I was listening to music on youtube then suddenly, it freezes on the video. I escape the video and it was okay but after that incident, It continued until the next day. I tried to restart the phone but nothing works, What shall I do? A key note might be that I only have 1.23 MB of space left in my phone. Maybe thats the cause but I'm not sure, please help!!!