I once uploaded an even worse jumpscare audio and nothing went wrong.
Try re-uploading it. Roblox’s AI may have removed it by mistake.
Appealing removed assets doesn’t always work.
You could add a disclaimer to the description. Something like:
“This audio is specifically designed to be a jumpscare sound effect intended for use in games requiring sudden, dramatic sound effects to enhance gameplay. It adheres to Roblox’s community standards and is not intended to be disruptive, offensive, or inappropriate.”
The bots always check the descriptions of any asset/experience before taking it down, so they’ll probably not take your jumpscare audio down when you reupload it with this disclaimer.