must restart firestick every day to use Directvstream

What exactly is the error? Is there a popup box with a message...or?

When I use the guide to select a channel there is a delay, the horizontal bar at the bottom extends to the edges of the screen and then an message pops up advising there is a problem and I should try again later. Every time I get that message, I go the firestick settings, select restart, and then the directv stream app works fine.

Try deleting and then reinstalling the DirecTV Stream App. 

What internet speed do you have? Do a speedtest.net ---might be that. Also, restart your modem/router.