Windows Defender has had issues this past week with some mods falsely flagging the mod as a Trojan:Script/Wacatac.B!ml.
This is a false positive. Microsoft has fixed this in their latest Defender update. The solution is to update Windows Defender's definitions.

This can be done via Windows Update, or alternatively via these steps:

1. Open command prompt as administrator:

2. Run the following:

cd C:\Program Files\Windows Defender && MpCmdRun.exe -removedefinitions -dynamicsignatures && MpCmdRun.exe -SignatureUpdate

That's it! I wish I could do more. I can assure you there is nothing wrong with the mod. Hopefully in a few days Defender is updated automatically for everyone.