And now, I can't update the product at all.
You have a error reported downloading a file which surely exists, the url is surely correct, and nobody else has a problem with it ( otherwise nobody would be even able to install GSX to begin with ).
So the only possible explanation is:
- your firewall or antivirus is blocking access to that site. Turn off the firewall and be sure the antivirus is configured to have the whole Addon Manager folder to the antivirus Exclusions
- your ISP might have mistakenly blocked access to our download url.
- your local cloudflare node might be down, or being prevented access by your ISP.
To troubleshoot the last two cases, you might try using a VPN to download, this one is supposed to be quite good, even in the free version:
http://www.protonvpn.comIf you can download with a VPN, then you can be sure the problem is something related to your ISP.