It just says connection lost, then sits at 100%. If I hit cancel it is as if nothing has happened.

https://www.voobly.com/gamemods/mod/1777/Overhaul-Patch

Thanks for looking into it

This happens because the version.ini contains a wrong version string. The configuration page still says version 1.0, but the version.ini is still 0.50.

Every time you update the mod, you must increase the version in both, the version.ini file of the newly uploaded ZIP archive and the version string in the mod's configuration page. The version string must be the same of course.

I've changed this and unfortunately am still having problems...

This is the error I'm getting if it helps...

Network Connection Error [Error transferring http://www.voobly.com/gamemods/package/71/Overhaul Patch/0/gamemod.vpkg - server replied: Forbidden]. Connection errors are typically caused by a temporary server outage, a firewall, or a problem with your internet connection. If it's been a long time since you've connected to Voobly it's recommended that you redownload the client from the website.

Close Voobly and delete the patch from the Voobly Mods folder in your game directory. Then open Voobly again and try to download the patch. That should fix the problem.