Unfortunately, this is a godot-based issue causing some PCs to be flagged. I've taken the steps to make this popup appear on the least amount of machines possible, however, until godot updates its system architecture on export to fix certain issues, you will have to make an exception for this game on your antivirus software in order to run it if you get this issue.
Please also make sure to only be downloading it from the itch.io page and not from any third party websites, there is no way to identify if it is a trojan or not on those sites.