There’s a script inside your game, named script which is causing the issue. The explorer “Filter workspace” tool may help you locate it(search for one named exactly script not Script):
Although if the script is some kind of free model script trying to hide itself, it may rename itself to “script” after the game runs, so I also advice you to use the tool while the simulation is running(and you’re viewing it as the server).
Well according to the console the round script is causing the memory leak. Perhaps try searching for loops inside events which aren’t breaking, temporary events which aren’t disconnecting, values which aren’t cleaned after script execution(example debounces) and try addressing everything which can lead to a memory leak.