I have just removed the leisure sailing registration link from the website. The server collecting the leisure sailing info is now the one in the racebox (at least for the next few weeks) and now you should register using the PC in the members room. The registration process uses the same software - just on a different computer/database. Sometime in the next few months we will release a new leisure sailing registration application which is better suited for use by non-racing folks. However even when we make this switch you will still need to be present at the club to register.
The links on the website were a bit of hangover from the COVID era when we were trying to avoid gathering in enclosed spaces.