How to troubleshoot entity error
This is not a problem with entities stored in the database, it is is a version conflict between the module Ctools and Drupal core.

When you install the current version of Ctools with composer require 'drupal/ctools:^3.4' you see that __construct() is calling the parent constructor providing a parameter EntityTypeManagerInterface.

modules/contrib/ctools/modules/ctools_views/src/Plugin/Display/Block.php

  /**
   * Constructs a new Block instance.
   *
   * @param array $configuration
   *   A configuration array containing information about the plugin instance.
   * @param string $plugin_id
   *   The plugin_id for the plugin instance.
   * @param mixed $plugin_definition
   *   The plugin implementation definition.
   * @param \Drupal\Core\Entity\EntityTypeManagerInterface $entity_type_manager
   *   The entity manager.
   * @param \Drupal\Core\Block\BlockManagerInterface $block_manager
   *   The block manager.
   * @param \Drupal\views\Plugin\ViewsHandlerManager $filter_manager
   *   The views filter plugin manager.
   * @param \Symfony\Component\HttpFoundation\Request $request
   *   The current request.
   */
  public function __construct(array $configuration, $plugin_id, $plugin_definition, EntityTypeManagerInterface $entity_type_manager, BlockManagerInterface $block_manager, ViewsHandlerManager $filter_manager, Request $request) {
    parent::__construct($configuration, $plugin_id, $plugin_definition, $entity_type_manager, $block_manager);

    $this-&gt;filterManager = $filter_manager;
    $this-&gt;request = $request;
  }


This requires that your core version has this code change:

https://git.drupalcode.org/project/drupal/-/commit/12d7ed53087a469ef8f87476c2849f7b24bfbbb7#140e79af0797f7f25fd1f20e2ebc697be118fea6

So you have to make sure you are using a current core version 8.8.x or you have to downgrade Ctools to a version not having this change.