I have found the Java code where the exception is thrown:
public void registerModel(URL auditModelUrl)
        {
            try
            {
                if (auditModels.containsKey(auditModelUrl))
                {
                    logger.warn("An audit model has already been registered at URL " + auditModelUrl);
                }
                Audit audit = AuditModelRegistryImpl.unmarshallModel(auditModelUrl);
                // Store the model itself
                auditModels.put(auditModelUrl, audit);
                // Cache property enabling each application by default
                List<Application> applications = audit.getApplication();
                for (Application application : applications)
                {
                    properties.put(getEnabledProperty(application.getKey()), true);
                }
            }
            catch (Throwable e)
            {
                throw new AuditModelException("Failed to load audit model: " + auditModelUrl, e);
            }
        }
Uses the application tag and his attribute key. Both are in the file, into the line:
<Application name="CMISChangeLog" key="CMISChangeLog">
¿Maybe I have to get the application CMISChangeLog from somewhere?.
Any ideas help.
Thanks!.