I have tried hard to save a node after changing one metadata. I still have the error message:
03150009 Wrapped Exception (with status template): 03151772 Failed to execute script 'classpath*:alfresco/templates/webscripts/be/etnic/alfresco/traiter-courrier-non-traite/mail.treat.post.js': NodeRef may not be null for calls to NodeService. Check client code.
Thanks in advance for your help!