Ibexa4 - Force Display pagebuilder blocks Listener and Twig errors

BlockResponseSubscriber.php

<?php

declare(strict_types=1);

namespace AppBundle\EventSubscriber\Blocks;

use Ibexa\FieldTypePage\Event\BlockResponseEvent;
use Ibexa\FieldTypePage\Event\BlockResponseEvents;
use Ibexa\FieldTypePage\Exception\BlockRenderException;
use Ibexa\FieldTypePage\FieldType\Page\Service\BlockService;
use Symfony\Component\EventDispatcher\EventSubscriberInterface;

class BlockResponseSubscriber implements EventSubscriberInterface
{
    /** @var BlockService  */
    private $blockService;

    public function __construct(
        BlockService $blockService,
    ) {
        $this->blockService = $blockService;
    }

    /**
     * {@inheritdoc}
     */
    public static function getSubscribedEvents()
    {
        return [
            BlockResponseEvents::BLOCK_RESPONSE => ['onBlockResponse', 300],
        ];

    }
  
    /**
     * @param \Ibexa\FieldTypePage\Event\BlockResponseEvent $event
     *
     * @throws \Exception
     */
    public function onBlockResponse(BlockResponseEvent $event): void
    {
        $response = $event->getResponse();

        try {
            $response->setContent($this->blockService->render($event->getBlockContext(), $event->getBlockValue()));
        } catch (\Exception $e) {
            throw new BlockRenderException($event->getBlockValue()->getType(), $e->getMessage() . $e->getFile().':'.$e->getLine());
        }
    }
}