Out website and Sheep do a lot of behind-the-scenes work to keep them working correctly. Occasionally, when you click on a link your request will reach the website at exactly the same time as it is making a change. If that happens you may see a browser error message with number 503 or 504 or, more likely, “This site is down for maintenance”.
Don’t worry, you’ve just been unlucky and all should be well if you refresh your browser.
This FAQ updated 25 April 2023