Please help-SOLVED

[Thund3rb0lt]

Hi i recently started using level editor evrything was fine until ir eceived this error
FATAL ERROR:Could not load Script file
custom_storie/test/custom_stories/test/maps/01_test.hps
main (3,5) ERR No matching signatures to
AddUseItemCallback(string@&, string@&, string@&, const bool)
Here my script Ill really appreciate any help
void OnStart()
{
AddUseItemCallback("","key_study_1", "level_hub_1" "FUNCTION",true);
}

void OnEnter()
{

}

void OnLeave()
{

}

void FUNCTION(string &in item,string &in door)
{
SetLevelDoorLocked("level_hub_1",false);
PlayGuiSound("unlock_door.snt",100);
RemoveItem("key_study_1");
}