More information:
FAULTING_IP:
Sins_of_a_Solar_Empire_Diplomacy+2084fc
006084fc 8b17 mov edx,dword ptr [edi]
ExceptionAddress: 00000000006084fc (Sins_of_a_Solar_Empire_Diplomacy+0x00000000002084fc)
ExceptionCode: c0000005 (Access violation)
ExceptionFlags: 00000000
NumberParameters: 2
Parameter[0]: 0000000000000000
Parameter[1]: 0000000000000000
Attempt to read from address 0000000000000000
DEFAULT_BUCKET_ID: NULL_POINTER_READ
PROCESS_NAME: Sins of a Solar Empire Diplomacy.exe
0:000:x86> u 006084f2
Sins_of_a_Solar_Empire_Diplomacy+0x2084f2:
006084f2 e6ff out 0FFh,al
006084f4 8b510c mov edx,dword ptr [ecx+0Ch]
006084f7 e8d413f6ff call Sins_of_a_Solar_Empire_Diplomacy+0x1698d0 (005698d0)
006084fc 8b17 mov edx,dword ptr [edi]
006084fe 8bd8 mov ebx,eax
00608500 8b8200020000 mov eax,dword ptr [edx+200h]
00608506 8bcf mov ecx,edi
00608508 ffd0 call eax