Exception when deleting parent entity

Could you provide a full backtrace please?

I have the same issue. It fails in the line

if ($entity->get($field_name)->isEmpty()) {

and $entity is a child entity but $field_name is the entity_reference field name from the parent, which doesn't exist and is not defined in the child when it's other content type.

Thanks for the explanation.

Hi, is there some workaround to fix it?