Hi Renee,
Sorry for my delay in responding to you. Openx is a banner management system that we use for our banners throughout the site. It’s a 100% safe product but some firewalls give a false positive whenever they see JSON code executing which is used by Openx.
I assure you the pages are safe as our security software doesn’t detect any problems.
To solve this you should be able to white-list that url in the exceptions setting of your firewall.
If you still have trouble with this, reply here and I will assist you further.