I found this on staging today while preparing for the wipe.
Error while compiling LaptopCrateHack: 'HackableLockedCrate' does not contain a definition for 'OriginalHackerPlayer' and no accessible extension method 'OriginalHackerPlayer' accepting a first argument of type 'HackableLockedCrate' could be found (are you missing a using directive or an assembly reference?) | Line: 170, Pos: 40