Antivirus software can sometimes incorrectly alert that certain downloadable applications or websites pose a threat.
If your antivirus software detects a threat, first try updating your antivirus software. If you continue to have issues installing the PlayVIG app then add PlayVIG as an exception so that your antivirus software will allow it.
This is usually done in the Settings section of the software, where you can then manage exceptions. From here, you are able to add PlayVIG to your exclusion list to unblock it.