What shows up if you visit this page? https://cdn.inibuilds.com/website/manager/iniManager-1.0.4_Setup.exe
Your ISP may be blocking our servers, or you may have a router configuration to block our server. Do you perhaps have a VPN enabled?
In any case, I'm preparing a WeTransfer link for you which I'll post once it's ready if you do not resolve this issue in the meantime.
Cheers.