Load/save problem

can someone tell me why this isn’t working?

on save button:
on (release){
savefile.data.score=_root.box.score;
savefile.data.level=_root.box.level;
savefile.data.coins=_root.box.coins;
savefile.data.lives=_root.box.lives;
savefile.flush();
}

on load button:
on(rollOver) {lg._visible = true}
on(rollOut) {lg._visible = false}
on (release){
var savefile = SharedObject.getLocal(“Space Game4”);
if(savefile.data.score==undefined){
_root.box.score=0;
_root.box.level=0;
_root.box.coins=0;
_root.box.lives=0;
}else{
_root.box.score=savefile.data.score;
_root.box.level=savefile.data.level;
_root.box.coins=savefile.data.coins;
_root.box.lives=savefile.data.lives;
}
}

thanks