Problem with the game

hello (remember I'm French and it's difficult to me to explain what I mean) (and when you answer to me, try to speak like little child that I can understand, because I don't understand all yours answers, and google traduction is bad)

I win level 7742 , the game give me stars because I win and Suddenly I have a screen oh this level 7742 who say to me "sorry, you have lost, retry"

fortunatly the game take me to next level and I can do the level 7743 .

Then , I win level 7743, the game give me stars because I win the level and suddenly I have a screen of this level 7743 who say to me "sorry, you have lost, retry"

Fortunatly the game take me to next level and I can do level 7744

Then, I lost level 7744, the game don't give stars and suddenly I have a screen of previous level 7743 who say to me "you win , click next" ...what happen ?