49cf188fad312a69dc0ac48e72119084 *sci-2001-07-27-d1t01.wav da6670056d9e82cff88c42dab6c66bea *sci-2001-07-27-d1t02.wav 8e7e4c2402b9c5ae1a0a93927825f14c *sci-2001-07-27-d1t03.wav eac0da192d5277ddce78d7671f92a61e *sci-2001-07-27-d1t04.wav 4458890d5c27a7a0f5a099c8aeac3d56 *sci-2001-07-27-d1t05.wav App\Http\Controllers\Api\ChecksumDownloadController::download(): Return value must be of type string, none returned