I save through the menu . I've check www folder , i didn't see any save folder . the continue button is always gray on the starting screen after when i've exit then reopen the game .
That's strange. You might have some kind of firewall that prevents the creation of the save folder.
https://www.mediafire.com/file/lcni9snphjud88w/save.rar/file
Download and put the folder in that RAR in the www folder and you should have be able to save.