af83796c0b234066369de0ae52273106 *sci2001-08-12d3t01.shn ff7e6335ff0516c41eb04358b948e977 *sci2001-08-12d3t02.shn cf4c42a8386b5d563c816974bdd3a41f *sci2001-08-12d3t03.shn b54a4a084e5aa75c85dea4430b3c35de *sci2001-08-12d3t04.shn App\Http\Controllers\Api\ChecksumDownloadController::download(): Return value must be of type string, none returned