Some Scenarios not Running

[RAUBKATER1]

Dear Sirs,I am playing PZCO again and am having issues with a few scenarios, notably (Tucheband and Golzov)
which are loading, but when I try playing as the Germans, I get a black screen and am out of the game with
message: Panzer Command has stopped working:

viewing the problem details, I get:

Problem Signature:
Problem Event Name: CLR20r3
Problem Signature 01: PCOstfront.exe
Problem Signature 02: 3.2.9.18166
Problem Signature 03: 54fc8f6c
Problem Signature 04: GameLib
Problem Signature 05: 3.3.0.18165
Problem Signature 06: 54fc8f6a
Problem Signature 07: 1ad
Problem Signature 08: SystemMissingMethodException
OS Version: 6.1.7601.2.1.0.768.3
Local ID: 1033

Additional Information 1: 0a9e
Additional Information 2: 0a9e372d3b4ad19135b953a78882e789
Additional Information 3: 0a9e
Additional Information 4: 0a9e372d364ad19135b953a78882e789

==========================================================================================================================

I have a WINDOWS 7 PENTIUM Computer:
Processor: AMD Phenom X4 965 (3.40 GHz)
with 8.00 GB of installed Memory (RAM)
System Type: 64-bit Operating System (service pack 1)
using NVIDIA version GeForce GTX 980 Graphics

Hoping I have given you sufficient Info, Please help me out as far as what to do next; I am really frustrated
by this...
Sincerly, Arno Riewe (RAUBKATER1)