[Bug]: ErrorException: iconv(): Wrong encoding, conversion from "utf-8" to "SJIS-win//TRANSLIT" is not allowed

Internal error in .\libraries\classes\Encoding.php#208
ErrorException: iconv(): Wrong encoding, conversion from "utf-8" to "SJIS-win//TRANSLIT" is not allowed

CREATE TABLE `test_table` (
  `id` int(11) NOT NULL,
  `col` varchar(50) DEFAULT NULL,
  PRIMARY KEY (`id`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_general_ci;

INSERT INTO `test_table` (`id`, `col`) VALUES (1, 'テスト');