Helping functor environnement oz?

Question

I got a parse error on the line 240 which is: GUI_port={GUI.portWindow}. I don't understand everything was getting well before. Can someone help me, there is not any other problem for compiling.

functor
import
   GUI at 'GUI.ozf'
   Input at 'Input.ozf'
   PlayerManager at 'PlayerManager.ozf'
   Browser   
define
   GUI_port
   BomberList
   Maping
  .....
in
  GUI_port={GUI.portWindow}
   {Send GUI_port buildWindow}
   BomberList={Begin Input.bombers Input.colorsBombers  1}
   Maping={BeginPlayer BomberList  map(people:nil listb:nil ports:nil listbonus:nil m:Input.map )}
  {RunGame BomberList Maping}
end