A Child Actor Component's class cannot be set to its owner! WTF IS THAT

Hi ! Today I reopen the project and my blueprint doesn’t complie anymore. If someone can help me (I’m a nooob)
My error : A Child Actor Component’s class cannot be set to its owner! ‘dialogCharacter_C’ is an invalid class choice for ‘/Game/PestoQuest/BP/dialogCharacter.dialogCharacter_C:dialogCharacter_GEN_VARIABLE’.

When i click on jump to node, it deosen’t do anything…

All my BP :

Thaaanks if you get me a answer

That error has nothing to do with your blueprint, but rather a child actor component. You have a child actor component that is the same class as the actor that contains it. You can’t do that. I think it would cause infinite recursion if it is spawned.

Show us a screenshot of your component list and the class of any child actors.