Sprites library pp_collision()

Processing Libraries
1

pixel perfect collision is acting up right now, plz help.

Code 
import sprites.*;
import sprites.maths.*;
import sprites.utils.*;
final double gravity = 20;
float scale;
Sprite level;
Sprite player;
Vector2D center;
int sign(float x) {return int(x/abs(x));};

void setup() {
  Sprite.ALPHALEVEL = 1;
  size(960, 540);
  center = new Vector2D(width/2, height/2);
  level = new Sprite(this, "lv1.png", 1);
  double tmp = width/level.getWidth();
  scale = (float) tmp;
  level.setScale(scale);
  level.setPos(center);
  player = new Sprite(this, "player.png", 2); player.setScale(scale);
  S4P.registerSprite(level);
  S4P.registerSprite(player);
  S4P.collisionAreasVisible = true;
  noSmooth();
}

void draw() {
  background(0);
  S4P.drawSprites();
  S4P.updateSprites(0.166);
  player.setAccY(gravity);
  println(player.pp_collision(level));
  if (player.pp_collision(level)) {
    player.setAccY(0);
    player.setVelY(-player.getVelY());
  }
}