ERROR IN THORLAB COMPACT SEPCTROMETER CCD220 LABVIEW EXAMPLE

Dear community,

I am using a Thorlabs CCD 220 compact spectrometer. I try to connect a spectrometer with LabVIEW via the given example by Thorlabs(TLCCS).For the first time run the example is working fine. for the second try its give me this error below. please find the attachment below. kindly let me know the way to rectify it.

Thanks in advance

Priya