WHMCS cron job not working error - jailshell/5: command not found

[andysag]

Hello, I am having trouble getting a cron job to work. It is the only one I am using and it is the one to run the automated settings in WHMCS (process invoices, etc).

I am getting this message emailed to me every time the cron tries to run.

/usr/local/cpanel/bin/jailshell: 5: command not found

It used to work but now I think it has been updated or something and it isn't working now. I am getting a cron status error in WHMCS.

I am with Inmotion hosting and they won't help because they say they don't support WHMCS and have told me to get support from WHMCS directly. The trouble is I am getting WHMCS through Inmotion so I can't get support from the WHMCS site at all as I am not registered as a user with them. Inmotion told me I should be able to use my username and password that I use to login to WHMCS but it just doesn't work, my email isn't registered with WHMCS at all!

The last time this cron job was completed was 02/04/2017. Maybe I have done something to make it not work but I can't think of what it may be.

Looking for any clues at all as to where I should look to fix this problem please.

 

[Infopro]

Which one of these crons are you speaking of?
Crons - WHMCS Documentation

 

[andysag]

Which one of these crons are you speaking of?
Crons - WHMCS Documentation

It is the cron.php

 

[Infopro]

If you've double checked your cron settings in your cPanel for this and they are correct, you'll need to speak with your Hosting Provider about this.

 

[rpvw]

You might find this thread helpful:
some cPanel update added jailshell to my crontabs