How to make a cron job run on a schedule?

Question

linux

Centos 6, added tasks via webmin.
The task file is located along the path /var/spool/cron/username.
Only the newly added task does not start, the rest of the tasks from this file are scheduled to run normally.
Did /etc/init.d/crond restart reload, changed user to root - nothing helps. The logs are empty (other tasks are written normally there).
The script is correct - manually through the Webmin panel (Scheduled Cron Jobs>Run Now) it starts normally!