TDC001 controller - Labview communication error

[VasilSaroka]

Hello,
I used attached Labview code to manage stepper motor control (TDC001 Thorlabs) to translate a sample in my setup, but since some time I obtain an error constantly (attached log). This translation system still works properly with thorlabs software, it also worked with this code, therefore I am really confused why such an error occurs. I just got started with Labview and programme wasn't created by me, so maybe someone explain what is wrong.
Thank you in advance, Vasili

[JtotheB]

There are many missing subVIs in the code that you posted, which makes it difficult to troubleshoot what might be going on in the code. Also, those errors are associated with the ThorLabs drivers, not with LabVIEW. Someone more familiar with their driver may be able to tell you what's going on specifically with that error. Do you get any LabVIEW errors when you run the code, and if so can you post screenshots of those errors? Has anything changed since the last time that you used this code successfully? That may give us some clues about what's going on.

[VasilSaroka]

       About sub VI: trying to fix mentioned problem I installed LabVIEW at my computer in the office and also faced with problem of missing sub VI and during downloading LabVIEW cannot find spt.dll (print screen attached). But  VI is downloaded good on the computer in the lab.

       What do you mean "LabVIEW error when you run the code" ? Does the previously attached log (from computer in the lab) discribe not LabVIEW error? 
       I did not change anything in the code.
      Thank you for you previous answer. I have sent e-mail to the Thorlabs techsupport.

Regards Vasili 

[JtotheB]

The spt.dll is part of the ThorLabs driver. Perhaps reinstalling their software will help.