I’ve been having this problem for ages. From time to time it will actually load- rarely - but it will be a one off. Downloaded it again and again, used the Orbx uninstall, waited for this latest version. The log to me looks a complete mess. It finds my Xplane location. The log finally errors on an Httperrorresponse. There’s also a line higher up about Version 4.1.34 is not available and the downgrade is disallowed. This is the first run updating with 4.1.34!
Orbx Central, for what it is trying to do, let you buy, update and manage products seems overly complicated. I used to buy a lot of Orbx product and there’s one I would buy today but they really need to give their head a wobble if they think this is a good interface into their products. I’m running Windows 10, all up to date and this is the only program I have an issue with.