Why is it deleted? :/

[något]

I started the game after 1 month and the complete single player was deleted i dont know why..
Iam very sad about this because i really love this game and i completed every level also 4/5 from world 4 ..
Now i have to complete every level again or what? -.- It took me very long to complete the boss fight in world 2 -.-
Why did this happened? :(