@Ryandeluca Thanks for the note here. When you say shutting off, do you mean the device is losing power? Is it restarting or simply exiting the channel to the Roku Home screen?
What model of Roku device do you own?
Try removing any streaming channel you experience this issue with, then restart your device from Settings>System>System restart. Once the device starts up again, add the streaming channel back once more and try to play content again.
If that isn't helping, please provide more details so we can try to assist you further.