DEBUG INFO:
Looking for category slug: 'signalisation'
Current store: 1 (Yanmar) - yanmar
User logged in: False
User group: Visiteur
Direct category lookup (store 1): Found
Category details: ID=8, store_id=1, active=True
Group restrictions: 3 groups
- Restricted to group ID: 5
- Restricted to group ID: 6
- Restricted to group ID: 8
Group access check result: DENIED
RESULT: Access denied due to group restrictions
ERROR: Access denied - category has group restrictions and user doesn't have required group