LogicException: The database connection is not serializable.

Problem/Motivation

When Disable Field is enabled, I cannot add any new item into select list field in a content type.

I have two Drupal instances in the server, it works fine in the old instance but the fresh installation doesnt work.

When i check log, I see the following Message:

LogicException: The database connection is not serializable. This probably means you are serializing an object that has an indirect reference to the database connection. Adjust your code so that is not necessary. Alternatively, look at DependencySerializationTrait as a temporary solution. in Drupal\Core\Database\Connection->__sleep() (line 1920 of /var/www/isms-uk/core/lib/Drupal/Core/Database/Connection.php).

And under Backtrace:

#0 [internal function]: Drupal\Core\Database\Connection->__sleep()
#1 /var/www/isms-uk/core/lib/Drupal/Component/Serialization/PhpSerialize.php(14): serialize()
#2 /var/www/isms-uk/core/lib/Drupal/Core/KeyValueStore/DatabaseStorageExpirable.php(111): Drupal\Component\Serialization\PhpSerialize::encode()
#3 /var/www/isms-uk/core/lib/Drupal/Core/KeyValueStore/DatabaseStorageExpirable.php(127): Drupal\Core\KeyValueStore\DatabaseStorageExpirable->doSetWithExpire()
#4 /var/www/isms-uk/core/lib/Drupal/Core/Form/FormCache.php(193): Drupal\Core\KeyValueStore\DatabaseStorageExpirable->setWithExpire()
#5 /var/www/isms-uk/core/lib/Drupal/Core/Form/FormBuilder.php(463): Drupal\Core\Form\FormCache->setCache()
#6 /var/www/isms-uk/core/lib/Drupal/Core/Form/FormBuilder.php(441): Drupal\Core\Form\FormBuilder->setCache()
#7 /var/www/isms-uk/core/lib/Drupal/Core/Form/FormBuilder.php(633): Drupal\Core\Form\FormBuilder->rebuildForm()
#8 /var/www/isms-uk/core/lib/Drupal/Core/Form/FormBuilder.php(325): Drupal\Core\Form\FormBuilder->processForm()
#9 /var/www/isms-uk/core/lib/Drupal/Core/Entity/EntityFormBuilder.php(48): Drupal\Core\Form\FormBuilder->buildForm()
#10 /var/www/isms-uk/core/modules/field_ui/src/Controller/FieldConfigAddController.php(63): Drupal\Core\Entity\EntityFormBuilder->getForm()
#11 [internal function]: Drupal\field_ui\Controller\FieldConfigAddController->fieldConfigAddConfigureForm()
#12 /var/www/isms-uk/core/lib/Drupal/Core/EventSubscriber/EarlyRenderingControllerWrapperSubscriber.php(123): call_user_func_array()
#13 /var/www/isms-uk/core/lib/Drupal/Core/Render/Renderer.php(627): Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->Drupal\Core\EventSubscriber\{closure}()
#14 /var/www/isms-uk/core/lib/Drupal/Core/EventSubscriber/EarlyRenderingControllerWrapperSubscriber.php(124): Drupal\Core\Render\Renderer->executeInRenderContext()
#15 /var/www/isms-uk/core/lib/Drupal/Core/EventSubscriber/EarlyRenderingControllerWrapperSubscriber.php(97): Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->wrapControllerExecutionInRenderContext()
#16 /var/www/isms-uk/vendor/symfony/http-kernel/HttpKernel.php(181): Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->Drupal\Core\EventSubscriber\{closure}()
#17 /var/www/isms-uk/vendor/symfony/http-kernel/HttpKernel.php(76): Symfony\Component\HttpKernel\HttpKernel->handleRaw()
#18 /var/www/isms-uk/core/lib/Drupal/Core/StackMiddleware/Session.php(58): Symfony\Component\HttpKernel\HttpKernel->handle()
#19 /var/www/isms-uk/core/lib/Drupal/Core/StackMiddleware/KernelPreHandle.php(48): Drupal\Core\StackMiddleware\Session->handle()
#20 /var/www/isms-uk/core/lib/Drupal/Core/StackMiddleware/ContentLength.php(28): Drupal\Core\StackMiddleware\KernelPreHandle->handle()
#21 /var/www/isms-uk/core/modules/big_pipe/src/StackMiddleware/ContentLength.php(32): Drupal\Core\StackMiddleware\ContentLength->handle()
#22 /var/www/isms-uk/core/modules/page_cache/src/StackMiddleware/PageCache.php(106): Drupal\big_pipe\StackMiddleware\ContentLength->handle()
#23 /var/www/isms-uk/core/modules/page_cache/src/StackMiddleware/PageCache.php(85): Drupal\page_cache\StackMiddleware\PageCache->pass()
#24 /var/www/isms-uk/core/lib/Drupal/Core/StackMiddleware/ReverseProxyMiddleware.php(48): Drupal\page_cache\StackMiddleware\PageCache->handle()
#25 /var/www/isms-uk/core/lib/Drupal/Core/StackMiddleware/NegotiationMiddleware.php(51): Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle()
#26 /var/www/isms-uk/core/lib/Drupal/Core/StackMiddleware/AjaxPageState.php(36): Drupal\Core\StackMiddleware\NegotiationMiddleware->handle()
#27 /var/www/isms-uk/core/lib/Drupal/Core/StackMiddleware/StackedHttpKernel.php(51): Drupal\Core\StackMiddleware\AjaxPageState->handle()
#28 /var/www/isms-uk/core/lib/Drupal/Core/DrupalKernel.php(704): Drupal\Core\StackMiddleware\StackedHttpKernel->handle()
#29 /var/www/isms-uk/index.php(19): Drupal\Core\DrupalKernel->handle()
#30 {main}

Please help.

Steps to reproduce

• Fresh Install Drupal 10.3.1, even tried in the old version 10.2.6
• Install and enable Disable field module
• Add content type
• Add a select list field and add item.

Proposed resolution

Remaining tasks

User interface changes

API changes

Data model changes