Tiki has various interfaces which override the standard interface (Bootstrap-based themes). As of 2024-02-21, there are various UIs because they were done by different people at different times. Next steps:
Make a list of all interfaces
Compare UIs
Determine which ones (some or all) should be unified
The server errors right now are not handled by Tiki, and hence have the default view of the server default, or sometimes on shared hosting the somewhat prettier messages they provide. It is a simple matter to take control over these, but of course, we need somewhere pretty to send users.
index.php & must be included errors
These currently unhelpful errors should probably be redirected to a 403 page.