No game file loaded. Either add one in your
Profile if you have an account, or attach it to the url with the gameUrl modifier, such as modular.tabletopadmiral.com?gameUrl=linktoajsonfile.json. Note, data providers have been instructed to add 'v2' to their file names, so if your usual file contained 'data.json', try changing it to 'datav2.json' in your URL.