Ranking problem

Despite having advanced combat logging enabled, ranking still isn’t working. I saw that there was another person having this same problem and it was due to having the incorrect region selected on the uploader, but I have literally no idea how to see that or change that. Any help would be great, thanks!

There is a section “Choose the guild you want to upload to:” (below file path selector)
Click “Choose…” button and you’ll find region options.