Crashing in Renaissance

Hi, I haven't had any tech probs with Civ 5 until now. Playing a game as China. Everything going swimmingly and am in the Renaissance age. Then all of a sudden the game crashed. So, I reload civ and load my autosave. Play a couple turns and it crashes again. Reload autosave this time saving 1/turn until I hit a point where now it crashes on the same turn every time and I can't continue. I've attached the save. Any advice appreciated.

p.s., If you open the save you might have to play a couple turns, not 100% sure it is at the point where it will crash next turn or not.

TIA

Confirmed.

When you click next turn the second time, the game crashes like civ4 did in the later eras.
After clicking next turn the first time, a message poped-up "Cape Town was captured by Cape Town".