How to delete a job post that has expired but people are still applying to?

Can you tell me which job is that?

This one https://www.cgtrader.com/jobs/dashboards?utm_source=transactional&utm_medium=email&utm_term=2016-10-10&utm_campaign=New+designer+applied+for+your+job&utm_content=textlink

I made the mistake of not putting in an end date on it and now the job has expired because someone is already working on it but don't know how to delete it so it is still running and people are applying to it.

I don't want it to become a waste of time for artists. I think this could be one of the main issues with the job posts on CGT. Sometimes people put the jobs up and then don't know how to take them down.