https://www.google.com/search?client=firefox-b-d&q=pci+e+port+error+PCIe+bus+error+severity+

https://qastack.fr/ubuntu/863150/pcie-bus-error-severity-corrected-type-physical-layer-id-00e5receiver-id

https://forum.ubuntu-fr.org/viewtopic.php?id=2016812