Is it possible to enable scheduller verbose logging on mikrotik?

Question

Mikrotik

Actually, how can you enable detailed logging (debug) scheduller'a in mikrotik.
Why do I need it? the fact is that the script manually starts with such policy

name="ftpbackup" owner="bkmz" policy=ftp,read,write last-started=apr/26/2017 17:31:57 run-count=52

and the scheduler, when starting this script, swears in the log

17:35:00 script,error script error: not enough permissions (9)