404 Error "Object not found" after installing admin plugin (on fresh install)

@nk74000, I have not idea what the issue is…

but I can ask some questions:

  • is this happening on localhost or at your hoster?
  • what’s the reason for adding RewriteBase /
  • If you use the original .htaccess, can you then access child pages like http://domain/typography/childpage?
  • Any interesting info in /logs/grav.log ?
  • Any interesting info in Apaches logs?