Crash on prevent block place event

How to Fix a crash when the event is canceled place a sign?

PHP:

    public function onBlockPlace(BlockPlaceEvent $event) {
        $player = $event->getPlayer();
        $level = $player->getLevel();
       
        $block = $event->getBlockAgainst();
        $pos = new Vector3($block->getX(), $block->getY(), $block->getZ());
       
        if ($this->findShop($pos)) {
            $event->setCancelled(true);
        }
    }

Two things:
1. Provide the error/crash log
2. Provide the whole code, so we can search for issues

In the console, there are no mistakes, just flies out of the game. This is all the code

PHP:

<?php namespace Test;

use pocketmine\event\Listener;
use pocketmine\plugin\PluginBase;
use pocketmine\event\block\BlockPlaceEvent;

class Plugin extends PluginBase implements Listener
{
    public function onEnable()
    {
        $this->getServer()->getPluginManager()->registerEvents($this, $this);
    }

    public function onBlockPlace(BlockPlaceEvent $event)
    {
        $event->setCancelled(true);
    }
}

Add the PHPDoc comment to the function... It may works

Can be an example?

Like:

PHP:

/** 
   * @param [event name]
   */


No this is not relevant.

I and made

PHP:

/**
* @param BlockPlaceEvent $event
*
* @priority HIGH
*/

public function onBlockPlace(BlockPlaceEvent $event) {
    $player = $event->getPlayer();
    $level = $player->getLevel();

    $block = $event->getBlockAgainst();
    $pos = new Vector3($block->getX(), $block->getY(), $block->getZ());

    if ($this->findShop($pos)) {
        $event->setCancelled(true);
    }
}

Maybe is the 'Find Shop' function that has issues?

No. Without this condition is also takes off.

This alone also makes your client crash?

Yes, and is not only on my device, and at all

Yes, and is not only on my device, and at all