As of today, the old editor (Cartouche) is no longer availabe in the INTL server. 

To edit the map please use our new editor (world.waze.com/editor)

You can read more about this issue and discuss it with other Wazers in this forum thread.

We have also implemented some local changes in editing permissions in several countries.

If you encounter permission issues while editing the map, please contact our support.