Hi @orex, welcome to the Gibbon community.
Sorry to hear your installation didn’t work correctly. This sounds like an error we saw recently with Xampp, which I had hoped we’d fixed in the most recent version. Can you let me know which version you tried to install?
If it is indeed the same issue, here are the steps to resolve it, which involve fixing the absoluteURL field in the gibbonSetting table: Demo Installation Problem
Hope this helps!