Roblox keep crashing when doing (mostly) anything

For context, i wanted to Save a map and i know the game security is bad cuz you can fake product purchase.

I injected without a problem and managed to launch infinite yield. i then tried to run saveinstance but roblox crashed.
So i tried runnin UniversalSynSaveInstance. i injected, but upon running the script roblox crashed.
As last resort, i tried dex explorer Game Downloader. It didn't even launch, just crashed.

I experimented running different script, and all crashed my game.

if it help, i was put into "production" channel and not "public" and can change that with fishtrap which i use to make my roblox look like 2017-2018.