Enable comments in job postings

I am struggling to enable comments on job postings. It simply does not work.

I have tried following the advice from the below post without any luck.
Tried adding the code snippets into both the child theme and the actual theme.
https://www.ads-software.com/support/topic/how-can-i-add-comments-to-each-job-listing?replies=7

Can someone be of assistance so that I do not pull out all of my hair? ??

https://www.ads-software.com/plugins/wp-job-manager/