ive downloading the addplicate 3 times now and i cant get it to install. I keep getting this error 

Something went wrong

itch-setup, v1.18.0, built on Apr 10 2019 @ 12:28:23, ref 57838bc373361f2c8938336674247f869999e862

Get https://broth.itch.ovh/itch/windows-amd64/25.4.0/signature/default?downloadSessionId=d7cffec0-7ac0-4a36-b28a-992c1ece2901: unexpected EOF
htfs connect
htfs.Open (initial request)
while opening remote signature file
Error during warm-up

I am having the exact same issue

Finally got it installed - it may be an issue with your firewall - I had to turn it off in order to install the app. Make sure to turn it back on though!

It might be because servers are busy but I don't know for sure.