0f90443dc20aaf0c54cd843db76aa661 *sci-2001-08-02-d1t01.shn 74dcfd6589b32a413ee818bf28d113b9 *sci-2001-08-02-d1t02.shn 15a88f686e6e4872244f174af4779319 *sci-2001-08-02-d1t03.shn 1ae995e0461aebf42159da33db3cb94d *sci-2001-08-02-d1t04.shn App\Http\Controllers\Api\ChecksumDownloadController::download(): Return value must be of type string, none returned