Erreur lors de la connexion à la base de données <br />
<b>Fatal error</b>:  Uncaught Error: Call to a member function prepare() on null in /htdocs/app/models/CityModel.php:79
Stack trace:
#0 /htdocs/app/controllers/CityController.php(196): CityModel-&gt;get_all_non_empty_cities(1)
#1 /htdocs/app/controllers/SectorController.php(169): CityController-&gt;get_all_non_empty_cities(1)
#2 /htdocs/app/core/Dispatcher.php(51): SectorController-&gt;show_sector_details_in_city(Object(Request))
#3 /htdocs/public/index.php(34): Dispatcher-&gt;__construct()
#4 {main}
  thrown in <b>/htdocs/app/models/CityModel.php</b> on line <b>79</b><br />