What is your PC Windows version?
Before open NavyField, you should install vcredist_x86 or vcredist_x64 for new version.
You can find the install files in NavyField installed folder in your PC.
If you are using WindowsXP, plz download WindowsXP support in our website.
Plz give us more detail information on the crash issue.
It will be helpful to fix the crash.
Thanks