A bug in the Devicenet safety Configurator (version 2.00) makes it impossible to generate the report configuration during the necessary checks to lock the CPU, if the comments are of foreign characters (eg à, è, ò, ù, ì, ... etc).
Although the configuration is present in the CPU, and fully functional, in this case it generates a report like the one attached, which reported "No date" in the description of the configuration.
Solution: pay attention to the characters used in the comments, and delete those that aren't English.