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Error: Call to undefined method Drupal\Core\Config\Entity\ConfigEntityType::getLowercaseLabel() in Drupal\group_webform\Plugin\GroupContentEnabler\GroupWebform->getPermissions() (line 48 of modules\group_webform\src\Plugin\GroupContentEnabler\GroupWebform.php).
Dans D:\xampp\htdocs\drupal-9.2.7\modules\group_webform\src\Plugin\GroupContentEnabler\GroupWebform.php
Remplacer la ligne 48
'%entity_type' => $this->getEntityType()->getLowercaseLabel(),
par
'%entity_type' => $this->getEntityType()->getSingularLabel(),