Why do pci lan realtek pxe bo3 d00

Hi everyone! I have a problem with my laptop. Since today it freezes out of nowhere and i have to shut it Down only from the Button. When I turn it on again i get this message

“ pci lan realtek pxe bo3 d00”

What do I need to do.

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crwdns2934109:0crwdne2934109:0

crwdns2889612:0crwdne2889612:0 0
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