"Route "entity.classy_paragraphs_style.canonical" does not exist."

Hello,

I have a fatal error when save a paragraph with a classy field.

I created 3 styles in classy paragraph style settings (image on left, image on right and image on top) , and added a field referenced classy paragraph style in a paragraph type (text + image). In a content type, I added a paragraph field.

When I create a content of this content type with this paragraph type, and choose one of the classy paragraph styles, the content is not saved and I get a white page with the message "The website encountered an unexpected error. Please try again later." In log, I get the error Uncaught PHP Exception Drupal\\Core\\Entity\\EntityStorageException: "Route "entity.classy_paragraphs_style.canonical" does not exist." at core/lib/Drupal/Core/Entity/Sql/SqlContentEntityStorage.php line 805.

How can I solve this problem ?

thanks