How to debug and fix 404 errors?

[olayway]

Acceptance

TBD

## Tasks

Rough steps:

1. Try to locate the underlying markdown file of the page you're trying to access (e.g. through clicking on some link) to see if it exists
   2 If it's there, check the spelling
2. If it's not there, see if you can find it in another place in the repo and adjust the links accordingly
3. If this didn't help, this might be an issue in your forntend app?