My first thought is that as it’s running from archive, it is not necessarily something used on the current forum. That said, something is invoking the script, so it is likely that it’s referenced by the current site, possibly.
Two other thoughts. Firstly, all seems well without it, so keep an eye on functionality to see if anything breaks.
Secondly, what is the your archive directory used for? Is it a repository for old code and resources or is it an area where a process on the site moves stuff to for, say, backup purposes?
It may be useful to get the context of the script, or maybe some of the script which could give us an idea what it is for?