updated to latest buildpack and heroku-20: No available connections on this event loop, creating a new one [database-id: psql] about heroku-buildpack HOT 2 CLOSED

Fatal error: Error raised at top level: connection reset (error set): Connection refused (errno: 111)

if let databaseURL = Environment.get("DATABASE_URL"),
   var config = PostgresConfiguration(url: databaseURL)
{
    config.tlsConfiguration = TLSConfiguration.forClient(certificateVerification: .none)
    app.databases.use(.postgres(configuration: config), as: .psql)
} else {
    app.databases.use(.postgres(
        hostname: Environment.get("DATABASE_HOST") ?? "localhost",
        username: Environment.get("DATABASE_USERNAME") ?? "postgres",
        password: Environment.get("DATABASE_PASSWORD") ?? "password",
        database: Environment.get("DATABASE_NAME") ?? "spark"
    ), as: .psql)
}