Dear Catalina,
When you launch LabVIEW after you get this crash next time, it will ask you if you want to investigate the crash. Choose the "Investigate internal error now" option and email the error log file to us by filling out the form on the web (which will be launched automatically). Please enter as much information as possible regarding when the error occurred, if it is reproducible, your system settings, etc and an engineer will follow up with you on the issue.
If this crash has occurred once and doesn't happen anymore, you can still email us the error log file from ni.com/ask. Refer to this knowledge base entry if you cannot find the log file:
Where Are LabVIEW Error Log Files Saved?Let me know if you have any trouble/questions doing that.
Thank you and good luck!
Shakhina P.
Applications Engineer
National Instruments