Stuck in unmasking secret city loading screen

Hello my lords and ladies, I just newly bought this game and subscribe this mod. The only reason i bought this game is to play this mod. I just have this mod, and when I try to play the game, the loading will stuck in the opening "unmasking secret city" loading screen. Then suddenly it crash without explanation then go back to Steam app. The game is stopped by itself, please is there anyone that can help me...