The creator changed it to Escape The School Obby.

https://www.roblox.com/games/1451599116/NEW-Escape-The-School-Obby

are you going to set up a leaderboard for that?

Oh yeah, forgot to update on the situation. I have a slightly broken copy of the game in studio. I'm currently fixing all the broken stuff, I'll try to get it out as soon as possible.

Update: The restored version is now up.

https://www.roblox.com/games/5112385889/Escape-The-Diner-Obby-Restored-for-Speedruns