How can i raise up the lp about lillianna? I have raised it to 10 than the system say the lp about lilianna have maximum! Although i still cooking with her over 30 times... It still can't trigger the task...
Try reinstall the game and start a new save.
I am 99.997% sure it was because of an old save problem.
Unfortunately, Ren'Py has some limitations on letting Save from the older version to load in new variables in new game.
* REMEMBER, START A NEW GAME AFTER YOU HAVE UPDATED THE GAME