I'm an rpi user and at boot I get the message "failed to load kernel modules", however the system seems to work just fine. Using stretch.

I'm an rpi3 user using stretch. At boot I get the message "failed to load kernel modules". I recently downloaded and installed buster with a different micro sd card and got the same message. Everything seems to work fine, although, I'd like to figure out how to address the failed to load kernel module message. Any thoughts? I have tried the following with no success...
sudo apt-get update
sudo apt-get upgrade