Can't remove computed field

> Since I was upgrade computed_field to 4.X version, I have an error when delete all sort of fields :
Drupal\Component\Plugin\Exception\PluginNotFoundException : The "field_item:computed_string_long" plugin does not exist.

That's a field type from the 3.x version of the module.

I'm not sure how you're going to manage to unpick that. Reverting to 3.x probably is going to cause other problems. Maybe temporarily copy in the computed_string_long plugin so you can delete the fields?

(Please don't use tags for random keywords.)

Hi,
I copied modules/contrib/computed_field/src/Plugin/Field/FieldFormatter/ComputedStringFormatter.php from version 3 to version 4 of computed_field then I made a drush cr. After trying to delete a field I have the same issue. Is there something more to do ?
Thanks for your help.

I tried to downgrade to version 3. If I delete a field, error is :
Drupal\Core\Database\DatabaseExceptionWrapper : SQLSTATE[42S02]: Base table or view not found: 1146 Table 'bdd.drupal_field_deleted_data_877caea112' doesn't exist: SELECT DISTINCT "t"."entity_id" AS "entity_id" FROM "drupal_field_deleted_data_877caea112" "t" WHERE "bundle" = :db_condition_placeholder_0 LIMIT 10 OFFSET 0; Array ( [:db_condition_placeholder_0] => bdd ) dans Drupal\Core\Entity\Sql\SqlContentEntityStorage->readFieldItemsToPurge() (ligne 1665 de core/lib/Drupal/Core/Entity/Sql/SqlContentEntityStorage.php).

> I copied modules/contrib/computed_field/src/Plugin/Field/FieldFormatter/ComputedStringFormatter.php

That's the wrong plugin. field_item:computed_string_long is a FieldTYPE plugin, not a FieldFORMATTER.

Thanks for your reply.
I solved my issue by doing that was described on this page : https://drupal.stackexchange.com/questions/230156/how-can-you-completely...
After this action, removing computer_field and the issue when deleted a field was both solved !
Thanks for your help.