STacSV Module stopped working and was closed

Hello,
I was reading the new on the internet when suddenly this error message box appeared and closed everything that was open. My PC worked fine for a while when this error appeared again. I am afraid that my Windows will crash totally, so can anyone help me to fix this error please? You know what might causing this?
Thanks!

STacSV Module stopped working and was closed
A problem caused the application to stop working correctly. Windows will notify you if a solution is available.
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