Well as the program says, you need to allow network access. The issue isn't that you aren't paying for your internet, but the application itself doesn't have access to your internet connection. What you need to do is go to your applications menu and I'm not entirely sure how you access this, but there's like a system options screen or like a data access scream for the various applications, you need to find that screen for Opera Mini. From there, tell it to allow access to your internet connection or what not, and then it should work.