Modpack not working

[Sonny]

for whatever reason my modpack stopped working today idk if they gave an update in the game but i tried to uninstall the old modpack and download the new one and this one isnt workign at all theres a virus in it

[Quaksen]

The game updated, which is why you'd need a new modpack.

 

I doubt there's a virus in the new one. What message are you seeing?