This is because you are using either Firefox for Android, the Tor browser or another browser that doesn't support background downloads. To fix this, in the settings section you have highlighted, click on "Force Android / Tor browser".

Out of curiosity which browser and device are you using? Maybe iI can fix it for your browser?

Also, I don't get email notifications if you edit your review so it's better to send me an email (at mediadownloaderunleashed@xn--3s8h30f.ws ) so I can reply faster