error after loading the custom story

[Green Sonic]

I get an error after I load the map
Fatal Error: Could not load script file
main (12,1) : ERR : Unexpected token '{'

void OnStart()
{
AddUseItemCallback("", "key_tomb_rusty_1", "level_hub_1", "KeyOnLevelDoor", true);
}

void KeyOnLevelDoor(string &in asItem, string &in asEntity)
{
SetLevelDoorLocked(asEntity, false);
RemoveItem(asItem);
}

{  
        AddUseItemCallback("", "Crowbar", "Door", "UseCrowbarOnDoor", true);
        AddEntityCollideCallback("Joint", "AreaBreak", "BreakDoor", true, 1);
}
 
void UseCrowbarOnDoor(string &in asItem, string &in asEntity)
{
        RemoveItem(asItem);
        PlaySoundAtEntity("", "player_crouch.snt", "Player", 0.05, false);
        AddTimer(asEntity, 0.2, "TimerPlaceCrowbar");
}
 
void TimerPlaceCrowbar(string &in asTimer)
{
        SetEntityActive("Joint", true);
        PlaySoundAtEntity("", "puzzle_place_jar.snt", asTimer, 0, false);
}
 
void BreakDoor(string &in asParent, string &in asChild, int alState)
{
        SetEntityActive("Joint", false);
        SetEntityActive("Broken", true);
 
        SetSwingDoorLocked("Door", false, false);
        SetSwingDoorClosed("Door", false, false);
        SetSwingDoorDisableAutoClose("Door", true);
 
        AddPropImpulse("Door", 0, 0, 3, "world");
 
        CreateParticleSystemAtEntity("", "ps_hit_wood.ps", "AreaEffect", false);
        PlaySoundAtEntity("", "break_wood_metal", "AreaEffect", 0, false);
 
        GiveSanityBoostSmall();
 
        PlayMusic("10_puzzle01.ogg", false, 0.7, 0.1, 10, false);
 
        AddTimer("", 0.1, "TimerPushDoor");
}
 
void TimerPushDoor(string &in asTimer)
{
        AddPropImpulse("Door", -4, 2, 1, "world");
        AddTimer("", 1.1, "TimerDoorCanClose");
}
 
void TimerDoorCanClose(string &in asTimer)
{
        SetSwingDoorDisableAutoClose("Door", false);
}