I have a fully-functioning EE site (which I didn't build) but I am migrating over to a new server, and everything is operating as it should with the exception of pages that have playa code in it. If I remove the playa code, the page works.

Playa 4.4.5 / EE 2.7.3 / PHP 5.3.2

Here is an example of code that works on the old server but not on the old:

{exp:stash:set_list
    name="related_insights"
    parse_tags="yes"
  }
  {exp:playa:children
     field="cf_hm_related_resources"
     status="open"
     disable="members"
    }
    {lv_md_related_insights}
  {/exp:playa:children}
{/exp:stash:set_list}

I've tried deleting cache. I've tried enabling debugging. All I get is a blank page unless I remove this snippet of code. Any ideas? Any ideas on what I can do to get some insight into what's happening?