And not displayed in the tool "Newsletter"

Caused by: org.ametys.plugins.repository.UnknownAmetysObjectException: There's no node for id page://00b55314-eba1-48c6-b2a3-cdc3353d8ae1
at org.ametys.plugins.repository.jcr.SimpleAmetysObjectFactory.getNode(SimpleAmetysObjectFactory.java:178)
at org.ametys.plugins.repository.jcr.SimpleAmetysObjectFactory.getAmetysObjectById(SimpleAmetysObjectFactory.java:128)
at org.ametys.plugins.repository.jcr.SimpleAmetysObjectFactory.getAmetysObjectById(SimpleAmetysObjectFactory.java:117)
at org.ametys.plugins.repository.jcr.SimpleAmetysObjectFactory.getAmetysObjectById(SimpleAmetysObjectFactory.java:58)
at org.ametys.plugins.repository.AmetysObjectResolver.resolveById(AmetysObjectResolver.java:241)
at org.ametys.plugins.newsletter.category.SitemapCategoryProvider.hasCategory(SitemapCategoryProvider.java:130)
at org.ametys.plugins.newsletter.category.CategoryProviderExtensionPoint.getCategory(CategoryProviderExtensionPoint.java:38)
at org.ametys.plugins.newsletter.generators.NewsletterListGenerator.generate(NewsletterListGenerator.java:120)
at org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.processXMLPipeline(AbstractProcessingPipeline.java:579)
... 56 more