HaloMods "Classic" Read-only Archive

umm yeah... i think i enabled the uhh trainers but uhh everytime i load halo2 from the harddrive it doesnt start up. it just keeps on showing evox

someone plz help me! idk how to apply this thing. i open up dothalo, open the shred.map. hit apply patch. apply the patch and save changes but it says some type of eror."object reference not set to an instance of an object.