Amazon is having issues with their S3 service which causing the launcher to hang on loading the feed list. The work around for this time is to navigate manually to game directory and launch the game: C:\program files (x86)\rat labs\the realm online\FF
For now keep on eye on the AWS service to return and then the launcher should function normally. You can monitor it here: https://downdetector.com/status/aws-amazon-web-services/
Sorry for any inconvenience and we’re working a solution for future issues.