Missing Birthdate: Added twice

Accidentally added the game permanently twice. The first time I added the game, I was notified that the game was deactivated and it didn't show in the list. But when I successfully added the game the second time, both games shows.

How can I delete one? Or platform administrators could help on this? Now the page shows two same "Missing Birthdate" games. Remove either one should be fine.

Suggestion: Maybe add a logic to deduplicate games from the same API?