Q: how to stop emtying trash

go to the Apple menu (top left on the general menubar), click ForceQuit, select Finder, and relaunch.

No idea what you are talking about. Do you mean the Trash empties as soon as you move something to it? Can you provide more detail please?

Relaunch the Finder, then from the Finder menu bar, select

Finder ▹ Preferences... ▹ Advanced

and uncheck the box marked

Empty Trash securely

Try again to empty the Trash.