Release date declined

Hello, I've tried to submit a release date change (#260617-203012-034000) for episode 1.9 of the Spanish webseries Moncloa Palace, which is 14 May 2009 (as listed on the series' official website in El Mundo) though on the episode page the release date is 20 October 2011, which belongs to a future episode. However, it got declined. 

Could anyone try to fix this? Here's the episode page if needed: https://www.imdb.com/es-es/title/tt39008594/

Thanks.