Aus dem Wiki:
Bad mod (custom player.img in GTA San Andreas\models). Restore player.img to original or use unmodded GTA.
Note: this crash can also be triggered when a player with CJ model (or CJ clothes) appears on your screen, on a server you're playing on. Your custom player.img cannot handle that and will cause a crash.
https://wiki.multitheftauto.com/wiki/Famous_cr…d_their_meaning
TL;DR: Eine saubere GTASA Version benutzten.