1be855af37dcbd39b7b6a23f74b512b6 *sch2001-10-05d2t01.shn 7de32c345fd616d802c9fd0712fcb75a *sch2001-10-05d2t02.shn 848d02f0b515c93e022f2d432a7daf8b *sch2001-10-05d2t03.shn e52855a8a38d34057629db0b85a8edc3 *sch2001-10-05d2t04.shn App\Http\Controllers\Api\ChecksumDownloadController::download(): Return value must be of type string, none returned