WP-o-Matic: Error "-":6: bad command errors in crontab file, can't install. ???

Hi,

I’m trying to set up a cron job with HostGator using the script from WP-o-Matic set up options:

*/20 * * * * /usr/bin/curl https://www.species-universe.com/blog/wp-content/plugins/wp-o-matic/cron.php?code=b4255063

and when I push “Add new cron job” I get this error:

Error “-“:6: bad command errors in crontab file, can’t install.

The Google search on it didn’t yield much that was helpful.

Does anyone know what causes this error and how to correct it? Any help will be appreciated. Thanks.

John