Procedure that calls DBMS_STATS.GATHER_INDEX_STATS Fails in Standalone scheduler job

Oracle database Oracle Database 19c Enterprise Edition Release 19.0.0.0.0 - Production 

Version 19.22.0.0.0 

on Linux x86 64-bit      

I have a procedure that calls:

  dbms_stats.gather_index_stats(USER,

                 '[INDEX_NAME]',

                 estimate_percent => 100,

                 degree      => 2);

The procedure runs fine from the command line, but when I run the procedure as a JOB:

DBMS_SCHEDULER.create_job (

    job_name    => l_dbms_job_name,

    job_type    => 'PLSQL_BLOCK',

    job_action   => l_dbms_job_action, -- Start time is NOW + 10 seconds

    start_date   => l_dbms_job_start,

    end_date    => NULL,

    enabled     => TRUE,

    job_class    => 'DEFAULT_JOB_CLASS',

    comments    => l_dbms_job_comment);

I get an error: