A "gameconfig" feature in this context isn't a single in-game mechanic but rather a modified file that , allowing you to install many mods (especially add-on vehicles, peds, and weapons) without crashing.
Reinstall or update and HeapAdjuster to versions explicitly compatible with Build 2845. Crash exactly when Story Mode finishes loading The engine ran out of archive file pointers. gta 5 gameconfig 2845