-1073807339 VISA Modbus Receive Error

Hello ,
I have been running this labVIEW program since the last 4 months. However, today as I run the same VI with same configurations and set up of PC, I am getting this error, see attachment.
its a sub VI called Utility MODBUS RTU Receive Message.vi
its strange that the error has cropped up from no-where. The entire VI is used to read temperature from a Eurotherm 3504 Device.
Please help!
Best Regards,
Poulomi Das.
Institute for Microsystems Engineering.
University of Freiburg.
Freiburg, Germany.
Attachments:
error.jpg ‏284 KB

Please check these if it helps
http://digital.ni.com/public.nsf/allkb/874B379E24C0A0D686256FCF007A6EA0
http://digital.ni.com/public.nsf/allkb/E6DFA2B8D7E99F9886256C14005E82F7
Thanks
uday,
Please Mark the solution as accepted if your problem is solved and help author by clicking on kudoes
Certified LabVIEW Associate Developer (CLAD) Using LV13

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