im having problem with my stairs can you help me? my stairs is floating that's why i can't try my character to climb on it

function control_stairs(){
my.passable = off;
my.push = 100;
my.scale_x = 1;
my.scale_y = 1;
my.scale_z = 1;



my.x = 100;
my.y = 100;
my.z = 100;
}