It appears that there was a hearing/conference for a so called "unconstested divorce" which is essentially a settlement between the parties as to a set divorce outcome. An "appearance" generally refers to actually showing up in court for a conference and/or hearing before the judge and/or court personnel. And it does seem odd that there was an appearance set in the future, with a disposition before the appearance.
I suggest that you immediately contact a family/divorce attorney for guidance and to see whether the ooutcome of the "hearing" was entirely dispositive and/or can be "reopened" for any reason.
I hope this helps.
Disclaimer: This answer is for informational purposes only and does not constitute general or specific legal advice, nor create an attorney client relationship.