“The importance of this is akin to the importance of everything being in order on a kesubah, or the marriage is not valid.”
Wrong.
The YWN moderator is sleeping on the job and should not allow posts like this to pass before verifying with an expert in this area of Halacha.
I do not have any Rabbinic ordination, but
Based upon my best understanding:
An invalid kesubah does not invalidate the marriage itself. A new kesubah is required immediately. Many, if not most or all of the monetary obligations are still binding on the husband even if no Kesubah is written.