Not Opening My Fampay App

I use the Fampay app on my Android phone, but a few minutes ago the app suddenly stopped working. When I try to open it, a pop‑up appears saying “Unusual Activity Detected” and that the app cannot be used on rooted devices, and it does not let me access my account at all. I am unable to use any feature of the app because it closes with this warning every time I open it. I want this restriction on my device to be checked and removed, or for an alternative solution to be provided so that I can access and use my Fampay account again without this error.