a4aacc2b89b2dd40804656c8bb2a0ae6 *sci010220d2t4.shn 52e892e6d729f4109df16a4fe048b4f2 *sci010220d2t2.shn 121f7cc908cbfe7cb254d23c7cafa97a *sci010220d2t3.shn f510731207ecb47efa143e9074ef8164 *sci010220d2t1.shn 5bbfad0dffb723eeb986e2441ed31aa1 *sci010220d2t5.shn App\Http\Controllers\Api\ChecksumDownloadController::download(): Return value must be of type string, none returned