Why am I being asked if I want to run a script?

I have a script application set to run daily via Ical. For some reason, now when the script begins running at the assigned time a window comes up asking me to "Press run to run this script". I don't recall this coming up previously, and (I'm new to scripting) I'm not sure how to script this away. I just want the script to go ahead and run, without a go ahead from me. Any thoughts?

Thanks.