Missing Workout app on Apple Watch

My toddler somehow deleted the Workout app off my watch, but it’s still showing in the watch app on my phone. When I click on it, all I see is an option to have workouts in low power mode or the measurements of the workouts. Nothing else is showing. I can see more options when I search for “workout” in the app, but when I click on them I’m back to the limited view. There is no option to add or delete the app. Anyone have any suggestions?

[Re-Titled by Moderator]