View for report in Mobile App

I use report builder to create reports. I connect my database to the report builder and generate reports from that database. When I upload that report to powerBi reportserver, in the browser I can view it, and filter the report according to the parameters I adjusted in the report builder. But when I connect the server to my mobile application, I see that the reports are not displayed. I don't know why? I have logged in to the correct account.