fsx crash

Hello guys i need your help because i am facing some issues with the fsx acc. After i load a flight and i take off everything works okay but after a 20 mins of a flight the fsx crashes and i am getting these two errors ( not the same time but one time the one and the other time the second ).Problem signature: Problem Event Name: BEX Application Name: fsx.exe Application Version: 10.0.61637.0 Application Timestamp: 46fadb14 Fault Module Name: MSVCR80.dll Fault Module Version: 8.0.50727.4940 Fault Module Timestamp: 4ca2b271 Exception Offset: 00008aa0 Exception Code: c000000d Exception Data: 00000000 OS Version: 6.1.7601.2.1.0.256.1 Locale ID: 1032 Additional Information 1: aa29 Additional Information 2: aa290ac6184b28ad1a3620c101a472de Additional Information 3: 0972 Additional Information 4: 097226de67d0e078e3655e51cd865caaAnd Problem signature: Problem Event Name: APPCRASH Application Name: fsx.exe Application Version: 10.0.61637.0 Application Timestamp: 46fadb14 Fault Module Name: SimConnect.dll Fault Module Version: 10.0.61637.0 Fault Module Timestamp: 46fad5b6 Exception Code: c0000005 Exception Offset: 00004a59 OS Version: 6.1.7601.2.1.0.256.1 Locale ID: 1032Does anyone has any idea how i can get these fixed? Also i want to mention that i am running the active sky evolution in a second pc so maybe this may doing the conflict.Many thanks in advance.