Yes, I noticed last night the the ‘Troubleshooting Davis stations’ page was behaving similarly. I did check the main page source and it appeared fine, when I re-entered the link and saved the main page the link worked. Though when I checked this morning the link is not working again and the home page indicates it was last updated seven days ago. Sounds like a GitHub issue, will look into it later today.
In the meantime you can get to the pages you want by looking under the dropdown on the top right side of the home page that lists all available pages, not the easiest way to navigate but the links appear to still work.
Gary