Havin glitches!

When i reach the all star nitro stage, its havin glitches! F......k!!!! Fix this problem! I cant advance to the nxt level no matter how many times I play the all star nitro stage and earning many stars but it doesnt work at all! Give me back my money! This star rating is not true!

Cas91 about Asphalt 6: Adrenaline HD, v1.5.0