site crash on deleting ECK type?

i installed module and added an ECK type (called eck_paragraph), added a few bundles (eck_text, eck_image etc), added a few bundle instances. i created a node type to hold a reference to "eck paragraph". i then deleted the bundles and the eck type (in reverse order). this has left a hanging reference to a non-existent type which has crashed my site.

when i try to list content im getting a white ECK type screen with message: "The website encountered an unexpected error. Please try again later". same when i try to view ECK types. same when trying to view/edit the node with the hanging reference.

this problem is due to not checking useage of the entity through an entityreference so i have a rogue content type in the system that holds a reference to a non-existent entity type that is preventing me using drush cr and ECK.

that this has happened shows a major tight-coupling flaw in drupal. a faulty node should not break the site, and certainly not disable major drush functions... i thought drush cr might fix it but its broken drush cr... i have no way to remove the eck_paragraphs type....

ontawesome@virtualmin:~/public_html/drupal-8.4.2/sites/default$ drush cr
Drupal\Component\Plugin\Exception\PluginNotFoundException: The "eck_paragraphs" entity type   [error]
does not exist. in
/home/fontawesome/public_html/drupal-8.4.2/core/lib/Drupal/Core/Entity/EntityTypeManager.php:133
Stack trace:
#0
/home/fontawesome/public_html/drupal-8.4.2/core/lib/Drupal/Core/Entity/EntityManager.php(54):
Drupal\Core\Entity\EntityTypeManager->getDefinition('eck_paragraphs', true)
#1
/home/fontawesome/public_html/drupal-8.4.2/core/lib/Drupal/Core/Field/Plugin/Field/FieldType/EntityReferenceItem.php(116):
Drupal\Core\Entity\EntityManager->getDefinition('eck_paragraphs')
#2
/home/fontawesome/public_html/drupal-8.4.2/core/modules/field/src/Entity/FieldStorageConfig.php(451):
Drupal\Core\Field\Plugin\Field\FieldType\EntityReferenceItem::schema(Object(Drupal\field\Entity\FieldStorageConfig))
#3
/home/fontawesome/public_html/drupal-8.4.2/core/modules/field/src/Entity/FieldStorageConfig.php(488):
Drupal\field\Entity\FieldStorageConfig->getSchema()
#4 /home/fontawesome/public_html/drupal-8.4.2/core/modules/views/views.views.inc(312):
Drupal\field\Entity\FieldStorageConfig->getColumns()
#5 /home/fontawesome/public_html/drupal-8.4.2/core/modules/views/views.views.inc(761):
views_field_default_views_data(Object(Drupal\field\Entity\FieldStorageConfig))
#6 [internal function]: core_field_views_data(Object(Drupal\field\Entity\FieldStorageConfig))
#7
/home/fontawesome/public_html/drupal-8.4.2/core/lib/Drupal/Core/Extension/ModuleHandler.php(391):
call_user_func_array('core_field_view...', Array)
#8 /home/fontawesome/public_html/drupal-8.4.2/core/modules/views/views.views.inc(184):
Drupal\Core\Extension\ModuleHandler->invoke('core', 'field_views_dat...', Array)
#9 [internal function]: views_views_data()
#10
/home/fontawesome/public_html/drupal-8.4.2/core/lib/Drupal/Core/Extension/ModuleHandler.php(391):
call_user_func_array('views_views_dat...', Array)
#11 /home/fontawesome/public_html/drupal-8.4.2/core/modules/views/src/ViewsData.php(245):
Drupal\Core\Extension\ModuleHandler->invoke('views', 'views_data')
#12 /home/fontawesome/public_html/drupal-8.4.2/core/modules/views/src/ViewsData.php(162):
Drupal\views\ViewsData->getData()
#13
/home/fontawesome/public_html/drupal-8.4.2/modules/ds/src/Plugin/Derivative/DsEntityRow.php(91):
Drupal\views\ViewsData->get('block_content')
#14
/home/fontawesome/public_html/drupal-8.4.2/core/lib/Drupal/Component/Plugin/Discovery/DerivativeDiscoveryDecorator.php(101):
Drupal\ds\Plugin\Derivative\DsEntityRow->getDerivativeDefinitions(Array)
#15
/home/fontawesome/public_html/drupal-8.4.2/core/lib/Drupal/Component/Plugin/Discovery/DerivativeDiscoveryDecorator.php(87):
Drupal\Component\Plugin\Discovery\DerivativeDiscoveryDecorator->getDerivatives(Array)
#16
/home/fontawesome/public_html/drupal-8.4.2/core/lib/Drupal/Core/Plugin/DefaultPluginManager.php(283):
Drupal\Component\Plugin\Discovery\DerivativeDiscoveryDecorator->getDefinitions()
#17
/home/fontawesome/public_html/drupal-8.4.2/core/lib/Drupal/Core/Plugin/DefaultPluginManager.php(174):
Drupal\Core\Plugin\DefaultPluginManager->findDefinitions()
#18
/home/fontawesome/public_html/drupal-8.4.2/core/lib/Drupal/Component/Plugin/Discovery/DiscoveryCachedTrait.php(22):
Drupal\Core\Plugin\DefaultPluginManager->getDefinitions()
#19
/home/fontawesome/public_html/drupal-8.4.2/core/lib/Drupal/Core/Plugin/Factory/ContainerFactory.php(16):
Drupal\Core\Plugin\DefaultPluginManager->getDefinition('node_rss')
#20
/home/fontawesome/public_html/drupal-8.4.2/core/lib/Drupal/Component/Plugin/PluginManagerBase.php(84):
Drupal\Core\Plugin\Factory\ContainerFactory->createInstance('node_rss', Array)
#21
/home/fontawesome/public_html/drupal-8.4.2/core/modules/views/src/Plugin/views/display/DisplayPluginBase.php(818):
Drupal\Component\Plugin\PluginManagerBase->createInstance('node_rss')
#22
/home/fontawesome/public_html/drupal-8.4.2/core/modules/views/src/Plugin/views/style/StylePluginBase.php(122):
Drupal\views\Plugin\views\display\DisplayPluginBase->getPlugin('row')
#23
/home/fontawesome/public_html/drupal-8.4.2/core/modules/views/src/Plugin/views/display/DisplayPluginBase.php(821):
Drupal\views\Plugin\views\style\StylePluginBase->init(Object(Drupal\views\ViewExecutable),
Object(Drupal\views\Plugin\views\display\Feed), Array)
#24 /home/fontawesome/public_html/drupal-8.4.2/core/modules/views/src/ViewExecutable.php(883):
Drupal\views\Plugin\views\display\DisplayPluginBase->getPlugin('style')
#25
/home/fontawesome/public_html/drupal-8.4.2/core/modules/views/src/ViewExecutable.php(1840):
Drupal\views\ViewExecutable->initStyle()
#26
/home/fontawesome/public_html/drupal-8.4.2/core/modules/views/src/Plugin/views/display/PathPluginBase.php(132):
Drupal\views\ViewExecutable->getTitle()
#27
/home/fontawesome/public_html/drupal-8.4.2/core/modules/views/src/Plugin/views/display/PathPluginBase.php(220):
Drupal\views\Plugin\views\display\PathPluginBase->getRoute('frontpage', 'feed_1')
#28
/home/fontawesome/public_html/drupal-8.4.2/core/modules/views/src/EventSubscriber/RouteSubscriber.php(120):
Drupal\views\Plugin\views\display\PathPluginBase->collectRoutes(Object(Symfony\Component\Routing\RouteCollection))
#29 [internal function]: Drupal\views\EventSubscriber\RouteSubscriber->routes()
#30
/home/fontawesome/public_html/drupal-8.4.2/core/lib/Drupal/Core/Routing/RouteBuilder.php(146):
call_user_func(Array)
#31
/home/fontawesome/public_html/drupal-8.4.2/core/lib/Drupal/Core/ProxyClass/Routing/RouteBuilder.php(83):
Drupal\Core\Routing\RouteBuilder->rebuild()
#32 /home/fontawesome/public_html/drupal-8.4.2/core/includes/common.inc(1142):
Drupal\Core\ProxyClass\Routing\RouteBuilder->rebuild()
#33 /home/fontawesome/public_html/drupal-8.4.2/core/includes/utility.inc(52):
drupal_flush_all_caches()
#34 /home/drush/vendor/drush/drush/commands/core/cache.drush.inc(302):
drupal_rebuild(Object(Composer\Autoload\ClassLoader),
Object(Symfony\Component\HttpFoundation\Request))
#35 /home/drush/vendor/drush/drush/includes/command.inc(422): drush_cache_rebuild()
#36 /home/drush/vendor/drush/drush/includes/command.inc(231): _drush_invoke_hooks(Array,
Array)
#37 /home/drush/vendor/drush/drush/includes/command.inc(199): drush_command()
#38 /home/drush/vendor/drush/drush/lib/Drush/Boot/BaseBoot.php(67): drush_dispatch(Array)
#39 /home/drush/vendor/drush/drush/includes/preflight.inc(66):
Drush\Boot\BaseBoot->bootstrap_and_dispatch()
#40 /home/drush/vendor/drush/drush/drush.php(12): drush_main()
#41 {main}
fontawesome@virtualmin:~/public_html/drupal-8.4.2/sites/default$