Departed on a Leave Lisbon mission (Assassin's Creed: Rogue)

I'm playing, then the task went to leave Lisbon, took off at the loading, where the ship is big. Well, it seems like I rebooted a couple of times, they coped with it. then after the church, leave Lisbon, when you run away, right after the white stairs in the city itself, departures begin: Terminated ACC work:
Problem event name: APPCRASH
Application name: ACC.exe
Application version: 0.0.0.0
Application time stamp: 54d3bf92
Module name with error : ACC.exe Error
module version: 0.0.0.0
Time stamp of error module: 54d3bf92 Exception
code: c0000005 Exception
offset: 0000000000814003
OS version: 6.1.7601.2.1.0.256.1
Language code: 1049
Additional information 1: e222
Additional information 2: e222b31bb1a59f70c523ea5e19b1fa6d
Additional information 3: 2ede
Additional information 4: 2ede52e0473784cf0faa1d066dfb08f5

help what to do? I already set the graphics to a minimum, nothing helps. I still think that my computer does not want to pull this earthquake, but the question is, how to reduce the graphics so that it does not crash?