9b4fd4d29bd270e3dba378366ebef23b *sci2002-03-26d3t01.shn f1a55d83a67b7e8cc56cc309ad9bde37 *sci2002-03-26d3t02.shn 40847bbdfbb7b13a494901c74253df4a *sci2002-03-26d3t03.shn App\Http\Controllers\Api\ChecksumDownloadController::download(): Return value must be of type string, none returned