Set skin geometry

Hello, I need help, when I try to put a skin geometry on the player is giving that error:

"Invalid Skin data size 4096 bytes (Allowed sizes: 8192, 16384, 65536)"


I'm using this code:

PHP:

public function setSkin($player) {
        $skin = $player->getSkin();
       $path = Main::getMainInstance()->getDataFolder() . 'Teste.png';
        $img = @imagecreatefrompng($path);
        $skinbytes = "";
        $s = (int)@getimagesize($path)[1];

        for($y = 0; $y < $s; $y++) {
            for($x = 0; $x < 64; $x++) {
                $colorat = @imagecolorat($img, $x, $y);
                $a = ((~((int)($colorat >> 24))) << 1) & 0xff;
                $r = ($colorat >> 16) & 0xff;
                $g = ($colorat >> 8) & 0xff;
                $b = $colorat & 0xff;
                $skinbytes .= chr($r) . chr($g) . chr($b) . chr($a);
            }
        }

        @imagedestroy($img);

        $player->setSkin(new Skin($skin->getSkinId(), $skinbytes, "", "geometry.rmsp.Teste", file_get_contents(Main::getMainInstance()->getDataFolder() . "geometry.Teste.json")));
        $player->sendSkin();
    }

 

You have to add 2x more pixels

 

Who i can do it?