bcaa4cf502661217a6b4b4a1bf926479 *sci2001-08-04d2t01.shn da82df6bdb54339bd1288248e68471fe *sci2001-08-04d2t02.shn 567b1df51974c4faefcd967fe7021c44 *sci2001-08-04d2t03.shn 7e29866faed44bb2f288e6c65824cd92 *sci2001-08-04d2t04.shn e5bccc1bd044f63a3f680a7e669f50f0 *sci2001-08-04d2t05.shn App\Http\Controllers\Api\ChecksumDownloadController::download(): Return value must be of type string, none returned