Why do I receive error on datasupp.cpp line 3563?

I am running a serial communication program and often the program crashes, when I restart Labview, I receive an error message referent to the datasupp.cpp line 3563

When LabVIEW generates a .cpp error, an internal error has occured within LabVIEW where a condition exists such that LabVIEW cannot continue execution. Generally, LabVIEW has reached a point in its internal code where it checks to see if certain conditions are true. Under normal circumstances, these conditions are indeed true, and LabVIEW is equipped to handle them. If they are not true, LabVIEW reports an internal error. LabVIEW reports the internal error and shuts down because to do otherwise would be to risk corrupting any VIs in memory.
Unfortunately, we do not have any record of the datasaupp.cpp line 3563 ever causing an error. When LabVIEW does throw internal .cpp errors, it will store a failure log file in your My Documents/LabVIEW Data/lvfailurelo
g directory by default. If you allow investigation of these internal errors, you can submit your error log file to National Instruments and we can see how the error message was generated.
You can check out http://www.ni.com/failure for more information.
Thanks again.

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