I deleted my plutonium files and can't redownload them

[torts]

I accidentally deleted my files for plutonium in an attempt to update it, and now I can't install the launcher because I'm getting this error message. I already deleted every single file associated with plutonium and am trying to start from the beginning with downloading everything.

[Xerxes]

Check your AV.

[torts]

Xerxes What's an AV

[Bubbles]

torts Antivirus