Again a 404 on admin

Hi all.

  • Grav-admin version : 1.8.17
  • Grav version: 1.5.8

Problem
When I going to admin part, I’ve multiple fetch error 404 (each admin page only) => See the screenshot

And yes, it is a true 404, not a 403 a 500 or other…

Trying:

  • Appache config : check (if wrong, i cannot access to grav website)
  • .htaccess config : check (RewriteBase set, DirectoryIndex check, Options -Indexes ok)
  • Read all troubleshooting page : check
  • Read all htaccess page : check
  • Search durring 30min on google : check

Installation:

  • For grave : install via composer project => composer create-project getgrav/grav my_folder
  • For grave admin : install via GPM => bin/gpm selfupgrade -f && bin/gpm update -f

So ? What’s goin on ?