What does the boot error message "invalid lpmi, dpmi offset" mean?

I am running Mint 19.1 “tessa” and this issue has carried over from Mint 19.0. When the system boots I see this error message that is mentioned in the subject. I have searched and found one other post where the person mentions this error message and questions its meaning. No one seems to to know as there are no answers that I can find. It does not seem to impair the operation of the OS so what causes this message and what does it mean? Can anyone explain it?

Does your system stop working after that message?

No, the system continues to boot normally and I can see no apparent problems although I would not know what to look for because I do not understand what this message means.