If the message saying "An internal exception occurred (address: 0x4ef52060) contactyoursite@yoursite.com Thank you!" appears when starting the game.

1. If you are using an external antivirus program other than Windows Defender, please give BLACK STIGMA a permission in a setting.

2. Besides antivirus programs, financial/DRM/blockchain security programs could also be the issue. Please try uninstalling any unused financial security programs. (In particular, keyboard security programs frequently cause the problems.)