Can not install our app from App Source

[CAGDAS]

I want to install our app that we publish Appsource. But I get a error while installing and our app cannot be installed.

Thanks for your answer.

[DrCadillac]

Not sure if this is relevant, but only business accounts can access and install add-ins from AppSource. If your Office profile is personal subscription it won't work. Instead the add-in has to be installed through the "get add-ins" button found on the various Office application ribbons.