This article explains a few different ways to fix the Disney Plus not working on Roku issue.

Once you add a channel to your Roku, it should continue to work fine without any intervention from you. If it doesn't, there could be a few reasons:

If Disney itself is down, there’s nothing you can do but wait until service is fully restored. Read on for the rest.

If Disney Plus used to work on your Roku but now suddenly doesn’t, you can try the following possible solutions.