Cannot edit title year after submitting release date

https://www.imdb.com/title/tt29369567/

I added generic 1990 release date. I then try to submit title correction: Psycho Paul's Film Festival (1990)

I get this error:

This correction has been rejected. You need to correct this correction before it will be accepted.

• The year in the new title must match the year in the old title.
  If you need to change the year as included in the title, please submit a release date corresponding to the new year. If you do not know the exact date within the year, it is okay to omit the day and month in the release date. We will then update the year in the title accordingly if required.

  Please note that if you are correcting an existing release date by more than a year, you should also provide an explanation to assist in processing this change.

What am I doing wrong?

It's 1990, source is the distributor: https://vinegarsyndrome.com/products/psycho-pauls-film-festival

Thanks.