itch.io

This is an antivirus issue. Some AV programs get a false positive on games made in Ren'Py 7.4 that contain a 32 bit executable. Most antiviruses have updated their detections but some (AVG and Avast are notable examples) are still doing the same thing 6 months on even though they've had samples sent to them for analysis. 

I would suggest adding an exclusion or using a different antivirus program. After all, if they can't fix an obvious false positive after 6 months, would you really trust them to protect you from a real threat?