Error code meaning on Labview instrument

[Slash96]

Good morning, I have a problem with the instruments I am controlling via GIPB visa on labview.

The error code is as shown in the following image, can you tell me what it means?

[crossrulz]

Right-click on the error cluster and choose "Explain Error".  The description is "The given session or object reference is invalid."  So you do not have a proper VISA Resource.

[GRCK5000]

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[GRCK5000 · Accepted solution]

Make sure you are using the right serial port.  Also, try using a different cable. Can we see the whole screenshot of your block diagram?

How old is your PC?