Fatal error: Uncaught Error: Call to a member function fetch_assoc() on boolean in /app/model/category.php:170
Stack trace:
#0 /app/model/site.php(150): category::getByID(3)
#1 /app/model/category.php(112): site::centerName()
#2 /app/gry.php(23): category::browse('3')
#3 /lib/controller.php(38): gry::przegladaj()
#4 /lib/controller.php(15): controller->execute()
#5 /index.php(4): controller->__construct()
#6 {main}
thrown in /app/model/category.php on line 170