I messed up the start and end years of a page.

I created an IMDb page for a mini-docuseries a few months ago. When making the page, I must have accidentally set the start year as 2024 and the end date as 2024 as well, while the series came out and ended in 2018. I changed the Release Date but that didn’t change the years at the top of the page, only the year in the Release Date section at the bottom. I requested deletion of the page due to this problem but it was declined, so now I need to find a way to fix this. Please tell me how to change the start and end dates if possible!

Page of concern:

https://www.imdb.com/title/tt35048566/?ref_=ext_shr_lnk