How do you fix a credit for an award when the field is not selectable?

I'm trying to fix a credit in the 'Recipients' fields for an award on a Film Festival (World Film Carnival, Singapore, Imdb Link: https://www.imdb.com/event/ev0015643/2022/1/). It's incorrectly pointing to someone else with the same first and last name. I couldn't find any way to correct the names credited for award win on 'edit page'. 

The Film Name is "Akhrot"
https://www.imdb.com/title/tt12930324/

Link to the festival page with the award:

https://www.imdb.com/event/ev0015643/2022/1/

Right now the award is set to 'Indrajit Das (I) https://www.imdb.com/name/nm5022702/' as the recipient and it should be corrected to 'Indrajit Das (II), https://www.imdb.com/name/nm10008763/ 

If anyone can change the info it'd be highly appreciated. 

Thanks & Regards