when i try to use birail 2, it creats nothing


Error: dpBirailSrf1 (Dp Birail Srf Node): First profile does not intersect rail curves. //
// Warning: dpBirailSrf1 (Dp Birail Srf Node): Birail surface not created //
// Warning: You have an empty result since history is on. You may want to undo the last command. //
// Result: dpsBirailSurface1 dpBirailSrf1 //
select -tgl curve4 ;

i used snap to vertices and snaped all relative edit points to the place on profile and rails but didnt work.

heres a pic of the scene