[Freeswitch-users] Lua Curl contra-indicated?

I've got a Lua script which employs the Lua Curl library to "phone a friend" in the process of deciding how to handle a call. It seems to mostly work very well. However, I've had a few instances recently where Freeswitch has mysteriously died on me, and often seen in the vicinity (on the log view of the console) is an external hit. Are there any precautions I should be taking to avoid this? Or simply any way in which I can eliminate this from my enquiries?