ayuda createProjectile

[Plate]

Hola tengo un problema con este script que me da error en el "createProjectile" y getElementPosition

Client:

function rocket(boss) 
x, y, z = getElementPosition(boss) 
if not (createProjectile(boss, 19, x, y, z, 100, player)) then 
end 
end 
addEvent("onBOSSFire", true) 
addEventHandler("onBOSSFire", getRootElement(), rocket) 

Server:

function spawnboss() 
               boss = exports.zombies:createZombie(241.96803283691, 1393.2790527344, 10.5859375, 90, math.random(300, 304), 0, 0, 200, 10000, true) 
              giveWeapon(boss, 36, 300) 
              triggerClientEvent("onBOSSFire", boss) 
end 
addCommandHandler("b", spawnboss) 
      

[Castillo]

-- client side:

function rocket ( boss, player ) 
    local x, y, z = getElementPosition ( boss ) 
    createProjectile ( boss, 19, x, y, z, 100, player ) 
end 
addEvent ( "onBOSSFire", true ) 
addEventHandler ( "onBOSSFire", getRootElement(), rocket ) 

-- server side:

function spawnboss ( player ) 
    boss = exports.zombies:createZombie ( 241.96803283691, 1393.2790527344, 10.5859375, 90, math.random ( 300, 304 ), 0, 0, 200, 10000, true ) 
    giveWeapon ( boss, 36, 300 ) 
    triggerClientEvent ( root, "onBOSSFire", root, boss, player ) 
end  
addCommandHandler ( "b", spawnboss ) 

[Plate]

No da error pero tampoco se crea el projectil

[Plate]

/// Comentario modificado ///

Trata de ponerlo así:

    function spawnboss ( player ) 
        boss = exports.zombies:createZombie ( 241.96803283691, 1393.2790527344, 10.5859375, 90, math.random ( 300, 304 ), 0, 0, 200, 10000, true ) 
        giveWeapon ( boss, 36, 300 ) 
        triggerClientEvent (getRootElement() , "onBOSSFire", boss ) 
    end 
    addCommandHandler ( "b", spawnboss ) 

ya lo arregle gracias man jaja pero el tema es que dispara 1 sola vez y que el misil no explota