Exception

Database Exceptionyii\db\Exception

SQLSTATE[HY000] [2003] Can't connect to MySQL server on '127.0.0.1' (111)

$_GET = [
    'section_slug' => 'kursy-obuchenie-povyshenie-kvalifikacii',
    'gn_slug' => 'ekzamen-dlya-polucheniya-vida-na-zhitelstvo-razresheniya-na-postoyannoe-prozhivanie',
];