Its not nox issue. I have this message on my other phone which I used to make purchases. Suddenly this message appeared last week and is not even rooted phone... Its supposed to disappear after you play few games pvp/siege/dungeons etc ... have few days of activity on the device.
Patron pack by itself is worthless. You either spend 500$ in heroes and 100$ per month on runes or nothing. Better save your money man