Logon Trigger - Insufficients privileges

Oracle 19C

I'm trying to create a logon trigger for a user, so that when he logs into the database, he must change the nls_date_format parameter in his session. I have already granted several privileges: connect, create session, alter session, create trigger, create any trigger and administer database trigger.

However, when I run the command to create the trigger, it gives the message of insufficient privileges.

The command I'm running is the following:

create or replace TRIGGER TG_POS_LOGON

AFTER LOGON ON database

BEGIN

  if (user = 'XXXXXX') then

   dbms_session.set_nls('NLS_DATE_FORMAT','''DD/MM/YYYY''');