What happened to the box app?

Excuse me, could you please elaborate on what you mean by "the box app"? Are you referring to a specific cryptocurrency wallet, trading platform, or some other type of financial application? Without knowing the exact application you're referring to, it's difficult to provide a precise answer. However, in general, there are several reasons why an app might cease to function or become inaccessible. These could include technical issues, security breaches, changes in ownership or management, regulatory interventions, or the app simply going out of business. If you have more specific information about the app in question, I might be able to provide a more targeted response.