TDA crashing when testing automated script

Toad Data Point & Toad Intelligence Central
1

I created a script similar to this http://tda.inside.quest.com/thread.jspa?messageID=83341&#8334183341 to send emails to specific people containing data relavant to them. When I test the automated script, TDA shuts down and throws this error:

System.InvalidOperationException
Connection musdt b opened.
Stack Trace:
at Devart.Data.Oracle.OracleConnection.l()
at Devart.Data.Oracle.OracleDataReader.Close()
at Devart.Data.Oracle.OracleDataReader.Finalize()

How do I stop this error?

TIA,
Marge