Skybrud Redirect Dashboard launches with 404 error

Questions
1

I’m using Umbraco 8.6.1. After installing the Skybrud.Umbraco.Redirects 2.0.5 from nuget in Visual Studio, I launched the website but the Redirects dashboard (in Content - Redirects) shows the below error. The only other package I use is uSync.

Am I missing any step?

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This is a companion discussion topic for the original entry at https://our.umbraco.com/forum/104047-skybrud-redirect-dashboard-launches-with-404-error