Problem with Cron

I followed how to setup cron using this link

https://wiki.invoiceplane.com/en/1.5/modules/recurring-invoices

My URL and Key are correct but somehow it is till not working

To confirm this, I tried putting the URL in a browser and I get a 404 not found.
I also tried running different linux command to run it

Then I looked inside the server and I do not even see a cron or recur files or folders. When I go to the invoices folder, I only see controllers, models and views folders…

So what am I missing?

I answered here, because you gave more information in that post

https://preyes.net/ip/index.php/invoices/cron/recur/cronkey

Thank you very much! It is absolutely working now.

Wasnt sure why it needed an index.php for my site.

Now that cron has been executed, the next thing I noticed that by default, the invoices created is in draft.
Is it possible to send the email automatically?

Yeah I think I have found it under System Data > Invoices > Email Settings