Cron job not working on a linux server

Currently trying to set up a helpdesk on a Ubuntu server VM through HESK, but can’t seem to get the hang of it. Command’s supposed to look like: /hesk/inc/mail/hesk_imap.php , which fetches all the mail in inbox and makes them into tickets. Works manually, but can’t set it up through cron. Here’s what i tried so far:

Hello,

have you tried to specify a full path to the wget command. Example:
/usr/bin/wget
You can find the full path by using the which command:

$ which wget 
/usr/bin/wget

Hope this helps

What are the permissions of the PHP script? I would start there. Since it is a PHP command and it works manually, perhaps a workaround could be to write an bash script with your PHP command and run the bash script in CRON?