Save props incase of crash

Hi guys I wondered if they is any mod out there that will save every prop, shipments weapons incase the server crashes, it gets pretty annoying when you buy 10k worth of shipments and build a great shop and the server crashes and you lost it al. Please this would be so helpful.

use the advanced duplicator if possible have a look around at garrysmod.org i have seen some inventory addons that save anything thats in them