fa690b0ed3b616c14a09f92d7c75c0b9 *sci2001-10-31d4t01.shn c45481e27817ce255cef2f66a6d46cdb *sci2001-10-31d4t02.shn 49112cb1082e223b2cb85769d799cdba *sci2001-10-31d4t03.shn 7bf34f4480abcfe2617a4aacaff93e15 *sci2001-10-31d4t04.shn ed5948f863a1491e86299dbd307ad2bf *sci2001-10-31d4t05.shn App\Http\Controllers\Api\ChecksumDownloadController::download(): Return value must be of type string, none returned