Exception

Database Exceptionyii\db\Exception

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

$_GET = [
    'section_slug' => 'knigi-uchebniki-periodicheskie-pechatnye-izdaniya',
    'gn_slug' => 'literatura-knigi-hudozhestvennaya',
];