GTA SA crashes with harvester

Just recently, I spawned a combine harvester in the game, as I attempt to drive the harvester the game crashes for some reason. The same happens when I drive into the country where a harvester is driving.. I tried replacing my modded data with my backup original data, replaced the gta3.img with my backup gta3 & put the original anims folder in my sa to replace the modded one. Even after doing all this work, the game still crashes. Could something be wrong with script, because it is the strangest thing has happened to me.

Help would definitely be appreciated, thanks.