ed6a9f9979f6d7f89afd067c1c462202 *slip2002-03-22d2t01.shn 327d0f2d0e28f910979773125d6d7d14 *slip2002-03-22d2t02.shn f8a02ead87a7e406c798f2369acfca1b *slip2002-03-22d2t03.shn ae28eabe67c84c672cb9b4d7d08382f1 *slip2002-03-22d2t04.shn App\Http\Controllers\Api\ChecksumDownloadController::download(): Return value must be of type string, none returned