Trace has invalid data

[Emo123]

Hello. I ran my program to control an instrument and I encountered this error.

Error -1074001665 occurred at HP89400 Error Query;
instrument reports:
-410,"Query INTERRUPTED; :SYST:ERR?"

followed by

Trace contains invalid data. Do anyone knows what this means? Thx

This is my program.

[muks]

What is your set baud rate? Have you verified it ?Is this problem occasional or evrytime you encounter this?

[Emo123]

May I know how to check for baud rate? The problem only occurs when I try to implement this time domain control vi into my instrument control program.