f6b68080b80faecfd0ab2eafae93d7e1 *sci2001-07-15d2t02.shn 6609a74c96de68ceea6c88d270740e70 *sci2001-07-15d2t01.shn de168825af5ef31df87e68c2c80db9ac *sci2001-07-15d2t03.shn App\Http\Controllers\Api\ChecksumDownloadController::download(): Return value must be of type string, none returned