Difficulty getting on screen credits listed - “Badly formatted”

Contribution Reference:

#240709-134545-971000

Example:
Declined

Actor Addition
Evans, Iestyn (I)- Fire Demon Puppeteer

Hi IMDb Community and Staff,

I would like to add the onscreen credits that me and my team received (for Knuckles: The Flames of Disaster) to the episode listing on IMDb.

I have worded the credits exactly as they are on the onscreen credits, and would love to understand what I need to do so that it’s not declined as “Badly Formatted”.

Happy to provide more information!

Many thanks in advance for any guidance people can provide!