Anti-Virus false positive detections
This is an Obfuscator and might be used for malicious purposes. Therefore, the SmartPawn binary could be marked as malicious even though it does no malicious acts. Add the SmartPawn binary to the Anti-Virus exclusion list if you want to use SmartPawn on your Computer. If you are still concerned, you can run SmartPawn in a Sandbox program (e.g. Sandboxie) or Virtual Machine (e.g. VirtualBox, VMware).