need help

what i need to change to make this plugin work again

PHP:

public function onPacketReceived(DataPacketReceiveEvent $event){
        $pk = $event->getPacket();
        $player = $event->getPlayer();
        if($pk instanceof UseItemPacket and $pk->face === 0xff) {
        $item = $player->getInventory()->getItemInHand();
        if($item->getId() == 290){
        foreach($player->getInventory()->getContents() as $item){
                if ($item->getID() == 351 && $item->getDamage() == 8 && $item->getCount() > 0){
                        $nbt = new CompoundTag ( "", [ 
                "Pos" => new ListTag ( "Pos", [ 
                        new DoubleTag ( "", $player->x ),
                        new DoubleTag ( "", $player->y + $player->getEyeHeight () ),
                        new DoubleTag ( "", $player->z ) 
                ] ),
                "Motion" => new ListTag ( "Motion", [ 
                        new DoubleTag ( "", - \sin ( $player->yaw / 180 * M_PI ) *\cos ( $player->pitch / 180 * M_PI ) ),
                        new DoubleTag ( "", - \sin ( $player->pitch / 180 * M_PI ) ),
                        new DoubleTag ( "",\cos ( $player->yaw / 180 * M_PI ) *\cos ( $player->pitch / 180 * M_PI ) ) 
                ] ),
                "Rotation" => new ListTag ( "Rotation", [ 
                        new FloatTag ( "", $player->yaw ),
                        new FloatTag ( "", $player->pitch ) 
                ] ) 
        ] );

 

this is weapon plugins