Upgrade to latest version problem

After the upgrade I can access the tabs anymore in the control panel etc

Avancement

Workflow

Besoin d'aide

Statut

Le problème a été enregistré

Hi,

I've seen this before when upgrading from an older version of YACS.

All seems to work fine but I can't access the tabs in the control panel etc.

We're using a skin based on the Skeleton skin.

Any suggestions?