Check whether other apps work, update Roku software, restart the device, then remove and reinstall only the affected app. Reinstalling may require that service’s sign-in credentials. Note the app's name and any error number first, since the maker's support page may list a fix for that exact app.
What this covers
- One Roku streaming app that will not open or play
What it does not cover
- ×Every app failing because Roku has no internet connection
Try in this order
0 of 4 completedTest another app and the network
ReversibleIf every app fails, run Settings › Network › Check connection. If only one app fails, keep the router and other apps unchanged.
Update Roku software
ReversibleOpen Settings › System › Software update › Check now and install an available update before altering the app.
Restart the Roku
ReversibleUse Settings › System › Power › System restart, or Settings › System › System restart when Power is absent.
Remove and reinstall the affected app
Signs you outHighlight the app, press Star, choose Remove app, restart Roku, then add the app again and sign in.
Evidence ledger
Sources behind this answer
Exact questions
Common questions about “A Roku app will not open, loads black or keeps crashing”
Why won't a Roku app open?+
A glitch or old software.
Is storage full?+
Free some.
What should I do if only one channel fails?+
Remove the channel and add it again from the channel store. If it still fails, check that the channel is still supported in your country and that an update is available.
Could low memory cause it?+
Yes. A device with many channels installed can run short of memory. Remove channels you no longer use and restart the Roku to free it.
When does a factory reset make sense?+
Only after restarts, channel reinstalls and updates have failed. A reset removes your channels and settings, so treat it as a last step.
What if the channel opens then shows a black screen?+
A black screen usually means the channel started but cannot load its content. Check your internet connection, restart the Roku and update the channel. If it persists for one channel only, the channel's service may be having a problem.
Should I check the channel's own status?+
Sometimes the service behind a channel has an outage, which looks like a Roku fault. Try the same channel on a phone or computer. If it fails there too, wait for the provider to fix it rather than resetting the Roku.