Ladder Item not working on piece of ladder?

[HumiliatioN]

This is strange I have same areas builded on "Professor Brislows castle" First Ladder area then Area where piece of ladder goes.

and this is the script:

{
AddUseItemCallback("", "ladder_item_1", "PlaceLadder", "LadderOn", true);
}

void LadderOn(string &in asItem, string &in asEntity)
{
SetEntityActive("LadderArea_1", true);
SetEntityActive("ladder_static_1", true);
GiveSanityBoostSmall();
}

Not working what im missing?

Help is quickly needed then I can finish this map for good