Can't install Xert widgets to Garmin 840

on my Garmin device connect app. it say. Xert fat and carbs not installed. I hit install and nothing happens. its asked for permission and I hit allow. I get the little wheel but then it goes back to the install button. I don’t find the blog post very helpful. the instructions seem out of date.

Update, I saw another post saying to use Garmin connect on a computer. That worked better.
The mobile app is what I prefer to use but Ive had no luck with it. I don’t always have access to my computer.

Love the widgets Xert have.