Thanks david, I've just checked and any message didn't show up.
Finally I can enter the game without that annoying problem.
Thank you again!

Hi all! During this month I've played TM2 Stadium thanks to a 30 day trial key given the participants of Triple Crown Feast, but, before the key deadline, I decided to buy the full game. When I tried to open TM2 Stadium, this message came out: http://www.mediafire.com/view/c3s1i7hr11ocw8d/Maniaplane...