Database connection failed: SQLSTATE[HY000] [1045] Access denied for user ''@'localhost' (using password: NO)
#0 /home/pol28596/public_html/badania.dtp.waw.pl/app/core/Database.php(36): Database->__construct()
#1 /home/pol28596/public_html/badania.dtp.waw.pl/app/models/Category.php(9): Database::getInstance()
#2 /home/pol28596/public_html/badania.dtp.waw.pl/app/controllers/SitemapController.php(82): Category->__construct()
#3 /home/pol28596/public_html/badania.dtp.waw.pl/app/controllers/SitemapController.php(29): SitemapController->generateSitemap()
#4 /home/pol28596/public_html/badania.dtp.waw.pl/app/core/Router.php(108): SitemapController->index(Array)
#5 /home/pol28596/public_html/badania.dtp.waw.pl/app/core/Router.php(74): Router::executeController('SitemapControll...', 'index', Array)
#6 /home/pol28596/public_html/badania.dtp.waw.pl/index.php(59): Router::dispatch()
#7 {main}