I downloaded Tor some while ago but never really used it. Recently I started it up and got "Signature Verification Failed. You may be under attack or there might just be a network problem. Click start and try the download again."
I'm not under attack and I don't have a network problem. In fact, I tried from two different networks in two different houses.
My computer is a Linux Ubuntu 16.4 LTS. But I am not an expert Linux admin.
Any help would be appreciated.